Publications of Harold U. Baranger    :chronological  combined listing:

%% Papers Published   
@article{fds245186,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Addition Energies of Fullerenes and Carbon Nanotubes as
             Quantum Dots},
   Journal = {Phys. Rev. Lett.},
   Volume = {91},
   Pages = {116803},
   Year = {2003},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/keby03_nanotubes.pdf},
   Key = {fds245186}
}

@booklet{Ke03,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Addition energies of fullerenes and carbon nanotubes as
             quantum dots: the role of symmetry.},
   Journal = {Physical Review Letters},
   Volume = {91},
   Number = {11},
   Pages = {116803},
   Year = {2003},
   Month = {September},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/14525451},
   Abstract = {Using density-functional theory calculations, we investigate
             the addition energy (AE) of quantum dots formed of
             fullerenes or closed single-wall carbon nanotubes. We focus
             on the connection between symmetry and oscillations in the
             AE spectrum. In the highly symmetric fullerenes the
             oscillation period is large because of the large level
             degeneracy and Hund's rule. For long nanotubes, the AE
             oscillation is fourfold. Adding defects destroys the spatial
             symmetry of the tubes, leaving only spin degeneracy;
             correspondingly, the fourfold behavior is destroyed, leaving
             an even/odd behavior which is quite robust. We use our
             symmetry results to explain recent experiments.},
   Doi = {10.1103/PhysRevLett.91.116803},
   Key = {Ke03}
}

@booklet{Nockel93,
   Author = {J. U. Nockel and A. D. Stone and H. U. Baranger},
   Title = {Adiabatic turn-on and the asymptotic limit in
             linear-response theory for open systems},
   Journal = {Physical Review B},
   Volume = {48},
   Number = {23},
   Pages = {17569 -- 17572},
   Year = {1993},
   Month = {December},
   Key = {Nockel93}
}

@article{nockel:17569,
   Author = {Nöckel, JU and Stone, AD and Baranger, HU},
   Title = {Adiabatic turn-on and the asymptotic limit in
             linear-response theory for open systems.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {48},
   Number = {23},
   Pages = {17569-17572},
   Publisher = {APS},
   Year = {1993},
   Month = {December},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10008374},
   Keywords = {TRANSPORT THEORY; KUBO FORMULA; ADIABATIC PROCESSES;
             MATHEMATICAL MODELS; ELECTRIC CONDUCTIVITY;
             SCATTERING},
   Key = {nockel:17569}
}

@booklet{Stanton86,
   Author = {Stanton, CJ and Baranger, HU and Wilkins, JW},
   Title = {Analytic Boltzmann equation approach for negative
             differential mobility in two-valley semiconductors},
   Journal = {Applied Physics Letters},
   Volume = {49},
   Number = {3},
   Pages = {176-178},
   Year = {1986},
   ISSN = {0003-6951},
   url = {http://dx.doi.org/10.1063/1.97216},
   Abstract = {We present results for the negative differential mobility
             and the distribution function in GaAs and InP for electric
             fields less than 40 kV/cm based on the analytic solution of
             the Boltzmann equation for a model with two valleys and
             three relaxation times. Using the measured low field
             mobility, lower valley mass, and valley separation energy Δ
             while adjusting three upper valley parameters, we obtain
             good agreement with the experimental velocity-field curves.
             The distribution function in the lower valley shows
             structure at energies ≊Δ due to the intervalley
             scattering.},
   Doi = {10.1063/1.97216},
   Key = {Stanton86}
}

@article{fds245114,
   Author = {Usaj, G and Baranger, HU},
   Title = {Anisotropy in ferromagnetic nanoparticles: Level-to-level
             fluctuations of a collective effect},
   Journal = {Europhysics Letters},
   Volume = {72},
   Number = {1},
   Pages = {110-116},
   Publisher = {cond-mat/0407771},
   Year = {2005},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/usajb04_ferronanopart.pdf},
   Abstract = {We calculate the mesoscopic fluctuations of the magnetic
             anisotropy of ferromagnetic nanoparticles; that is, the
             effect of single-particle interference on the direction of
             the collective magnetic moment. A microscopic spin-orbit
             Hamiltonian considered as a perturbation of the much
             stronger exchange interaction first yields an explicit
             expression for the anisotropy tensor. Then, assuming a
             simple random matrix model for the spin-orbit coupling
             allows us to describe the fluctuation of such a tensor
             analytically. In the case of uniaxial anisotropy, we
             calculate the distribution of the anisotropy constant for a
             given number of electrons, and its variation upon increasing
             this number by one. The magnitude of the latter scales
             inversely with the number of atoms in the particle and is
             sufficient to account for the experimental data. © EDP
             Sciences.},
   Doi = {10.1209/epl/i2005-10210-4},
   Key = {fds245114}
}

@article{fds245051,
   Author = {Narimanov, EE and Cerruti, NR and Baranger, HU and Tomsovic,
             S},
   Title = {Anomalous low temperature behavior of superconducting
             Nd1.85Ce0.15CuO4-y},
   Journal = {Physical Review Letters},
   Volume = {83},
   Number = {13},
   Pages = {2644-2647},
   Year = {1999},
   ISSN = {0031-9007},
   Abstract = {Bicrystal grain boundary Josephson junctions of the
             electron-doped cuprate superconductor Nd1.85Ce0.15CuO4-y are
             used to measure the temperature dependence of the in-plane
             London penetration depth λab(T) and the maximum Josephson
             current Ic(T). Results showed that λab(T) and Ic(T)
             anomalously increases and decreases, respectively, with
             decreasing temperature below 4 K due to the presence of the
             Nd3+ paramagnetic moments.},
   Key = {fds245051}
}

@booklet{Baranger85,
   Author = {Baranger, HU and Wilkins, JW},
   Title = {Ballistic electrons in a submicron structure: The
             distribution function and two valley effects},
   Journal = {Physica B: Physics of Condensed Matter & C: Atomic,
             Molecular and Plasma Physics, Optics},
   Volume = {134},
   Number = {1-3},
   Pages = {470-474},
   Year = {1985},
   ISSN = {0378-4363},
   Abstract = {We have solved the Boltzman equation for a submicron
             N+-N--N+ GaAs structure within a two-valley model using
             energy-dependent relaxation times. Ballistic electrons
             produce a large peak in the velocity-distribution function
             throughout much of the N- region. Transfer of electrons from
             the lower to upper valley in the N- layer causes an
             accumulation of charge near the collecting N+ region.
             Transfer of electrons back from the upper to the lower
             valley in the collecting N+ region creates two new peaks in
             the distribution function which we call ballistic electron
             echoes. © 1985.},
   Key = {Baranger85}
}

@article{baranger:7349,
   Author = {Baranger, HU and Wilkins, JW},
   Title = {Ballistic electrons in an inhomogeneous submicron structure:
             Thermal and contact effects},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {30},
   Number = {12},
   Pages = {7349-7351},
   Publisher = {APS},
   Year = {1984},
   ISSN = {0163-1829},
   url = {http://link.aps.org/abstract/PRB/v30/p7349},
   Keywords = {SEMICONDUCTOR MATERIALS; TRANSPORT THEORY; ELECTRON SPECTRA;
             MICROSTRUCTURE; DIFFUSION; ELECTRIC CONTACTS; DEBYE LENGTH;
             BOLTZMANN EQUATION; TEMPERATURE EFFECTS},
   Abstract = {For a simple submicron semiconductor structure we have
             calculated exactly the electron distribution f(v,x) within a
             relaxation-to-local-equilibrium assumption for the collision
             term of the Boltzmann equation. This is the first
             calculation of the electron distribution in an inhomogeneous
             semiconductor. Large applied voltages produce a substantial
             ballistic peak in f(v,x). But at all voltages contact
             inhomogeneities and local heating (and cooling) produce an
             I-V characteristic only weakly dependent on the scattering
             rate. © 1984 The American Physical Society.},
   Doi = {10.1103/PhysRevB.30.7349},
   Key = {baranger:7349}
}

@article{baranger:1708,
   Author = {Baranger, HU and Pelouard, J-L and Pône, J-F and Castagné,
             R},
   Title = {Ballistic peaks in the distribution function from
             intervalley transfer in a submicron structure},
   Journal = {Applied Physics Letters},
   Volume = {51},
   Number = {21},
   Pages = {1708-1710},
   Publisher = {AIP},
   Year = {1987},
   ISSN = {0003-6951},
   url = {http://link.aip.org/link/?APL/51/1708/1},
   Keywords = {GALLIUM ARSENIDES; MONTE CARLO METHOD; SIMULATION;
             SEMICONDUCTOR DEVICES; CHARGED–PARTICLE TRANSPORT;
             DISTRIBUTION FUNCTIONS},
   Abstract = {Using Monte Carlo simulation, we show that ballistic
             electrons coupled with intervalley scattering produce peaks
             in the distribution function of electrons in submicron
             structures. The distribution functions f(v,x) and f(ε,x)
             for a submicron N+-N--N+ GaAs structure indicate that
             ballistic electrons cause both the dominant peak in f(v,x)
             throughout the N- region and additional peaks in f(ε,x)
             following transfer from the L valley to the Γ valley. For
             low densities and low temperatures (T=77), both ballistic
             peaks in f(ε,x) split into several sharp peaks separated in
             energy by the optic-phonon energy.},
   Doi = {10.1063/1.98551},
   Key = {baranger:1708}
}

@article{baranger:1487,
   Author = {Baranger, HU and Wilkins, JW},
   Title = {Ballistic structure in the electron distribution function of
             small semiconducting structures: General features and
             specific trends.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {36},
   Number = {3},
   Pages = {1487-1502},
   Publisher = {APS},
   Year = {1987},
   Month = {July},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9942980},
   Keywords = {GALLIUM ARSENIDES; HETEROJUNCTIONS; ELECTRONS; DISTRIBUTION
             FUNCTIONS; TRANSPORT PROCESSES; HOT ELECTRONS; POISSON
             EQUATION; BOLTZMANN EQUATION; RELAXATION TIME; IV
             CHARACTERISTIC; MOBILITY},
   Key = {baranger:1487}
}

@article{Novais10_howlong,
   Author = {Novais, E and Mucciolo, ER and Baranger, HU},
   Title = {Bound on quantum computation time: Quantum error correction
             in a critical environment},
   Journal = {Physical Review A - Atomic, Molecular, and Optical
             Physics},
   Volume = {82},
   Number = {2},
   Pages = {020303(R)},
   Year = {2010},
   ISSN = {1050-2947},
   url = {http://hdl.handle.net/10161/3348 Duke open
             access},
   Abstract = {We obtain an upper bound on the time available for quantum
             computation for a given quantum computer and decohering
             environment with quantum error correction implemented.
             First, we derive an explicit quantum evolution operator for
             the logical qubits and show that it has the same form as
             that for the physical qubits but with a reduced coupling
             strength to the environment. Using this evolution operator,
             we find the trace distance between the real and ideal states
             of the logical qubits in two cases. For a super-Ohmic bath,
             the trace distance saturates, while for Ohmic or sub-Ohmic
             baths, there is a finite time before the trace distance
             exceeds a value set by the user. © 2010 The American
             Physical Society.},
   Doi = {10.1103/PhysRevA.82.020303},
   Key = {Novais10_howlong}
}

@booklet{Nixon91,
   Author = {Nixon, JA and Davies, JH and Baranger, HU},
   Title = {Breakdown of quantized conductance in point contacts
             calculated using realistic potentials.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {43},
   Number = {15},
   Pages = {12638-12641},
   Publisher = {APS},
   Year = {1991},
   Month = {May},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9997071},
   Keywords = {QUANTUM WELL STRUCTURES; TRANSPORT THEORY; POINT CONTACTS;
             DONORS; IMPURITIES; ELECTRIC CONDUCTIVITY;
             HETEROSTRUCTURES},
   Key = {Nixon91}
}

@article{Huaixiu11_4LS,
   Author = {Zheng, H and Gauthier, DJ and Baranger, HU},
   Title = {Cavity-free photon blockade induced by many-body bound
             states.},
   Journal = {Physical Review Letters},
   Volume = {107},
   Number = {22},
   Pages = {223601},
   Year = {2011},
   Month = {November},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/22182028},
   Abstract = {The manipulation of individual, mobile quanta is a key goal
             of quantum communication; to achieve this, nonlinear
             phenomena in open systems can play a critical role. We show
             theoretically that a variety of strong quantum nonlinear
             phenomena occur in a completely open one-dimensional
             waveguide coupled to an N-type four-level system. We focus
             on photon blockade and the creation of single-photon states
             in the absence of a cavity. Many-body bound states appear
             due to the strong photon-photon correlation mediated by the
             four-level system. These bound states cause photon blockade,
             which can generate a sub-Poissonian single-photon
             source.},
   Doi = {10.1103/PhysRevLett.107.223601},
   Key = {Huaixiu11_4LS}
}

@booklet{Sumetskii95,
   Author = {Sumetskii, MI and Baranger, HU},
   Title = {Change in sign of the photocurrent in a coherent asymmetric
             superlattice},
   Journal = {Applied Physics Letters},
   Volume = {67},
   Number = {24},
   Pages = {3560-3562},
   Publisher = {AIP},
   Year = {1995},
   url = {http://link.aip.org/link/?APL/67/3560/1},
   Keywords = {FREQUENCY DEPENDENCE; INTERFERENCE; OSCILLATIONS;
             PHOTOCONDUCTIVITY; PHOTOCURRENTS; QUANTUM WELLS;
             SUPERLATTICES},
   Abstract = {This study shows that the oscillations of the photocurrent
             sign may be observed for the simplest double quantum well
             structure and for the superlattice with a double quantum
             well unit. Two series of the current reversal points have
             been found. Further study of the photocurrent induced in
             such structures may lead to a new kind of infrared detector
             based on this photocurrent reversal effect.},
   Doi = {10.1063/1.114921},
   Key = {Sumetskii95}
}

@booklet{Ullmo98,
   Author = {Ullmo, D and Baranger, HU and Richter, K and Oppen, FV and Jalabert,
             RA},
   Title = {Chaos and interacting electrons in ballistic quantum
             dots},
   Journal = {Physical Review Letters},
   Volume = {80},
   Number = {5},
   Pages = {895-899},
   Year = {1998},
   Abstract = {We show that the classical dynamics of independent particles
             can determine the quantum properties of interacting
             electrons in the ballistic regime. This connection is
             established using diagrammatic perturbation theory and
             semiclassical finite-temperature Green functions.
             Specifically, the orbital magnetism is greatly enhanced by
             the combined effects of interactions and finite size. The
             presence of families of periodic orbits in regular systems
             makes their susceptibility parametrically larger than that
             of chaotic systems, a difference which emerges from
             correlation terms.},
   Key = {Ullmo98}
}

@article{fds4755,
   Author = {H. U. Baranger and R. M. Westervelt},
   Title = {Chaos in Ballistic Nanostructures},
   Pages = {537-628},
   Booktitle = {Nanotechnology},
   Publisher = {Springer-Verlag},
   Editor = {G. Timp},
   Year = {1999},
   Key = {fds4755}
}

@booklet{Narimanov99,
   Author = {E. E. Narimanov and N. R. Cerruti and H. U. Baranger and S.
             Tomsovic},
   Title = {Chaos in quantum dots: Dynamical modulation of Coulomb
             blockade peak heights},
   Journal = {Physical Review Letters},
   Volume = {83},
   Number = {13},
   Pages = {2640 -- 2643},
   Year = {1999},
   Month = {September},
   Key = {Narimanov99}
}

@article{fds245192,
   Author = {Narimanov, EE and Cerruti, NR and Baranger, HU and Tomsovic,
             S},
   Title = {Chaos in quantum dots: dynamical modulation of coulomb
             blockade peak heights},
   Journal = {Physical Review Letters},
   Volume = {83},
   Number = {13},
   Pages = {2640-2643},
   Year = {1999},
   ISSN = {0031-9007},
   Abstract = {We develop a semiclassical theory of Coulomb blockade peak
             heights in quantum dots and show that the dynamics in the
             dot leads to a large modulation of the peak height. The
             corrections to the standard statistical theory of peak
             height distributions, power spectra, and correlation
             functions are nonuniversal and can be expressed in terms of
             the classical periodic orbits of the dot that are well
             coupled to the leads. The resulting correlation function
             oscillates as a function of the peak number in a way defined
             by such orbits. In addition, the correlation of adjacent
             conductance peaks is enhanced. Both of these effects are in
             agreement with recent experiments. © 1999 The American
             Physical Society.},
   Key = {fds245192}
}

@article{baranger:10637,
   Author = {Baranger, HU and DiVincenzo, DP and Jalabert, RA and Stone,
             AD},
   Title = {Classical and quantum ballistic-transport anomalies in
             microjunctions.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {44},
   Number = {19},
   Pages = {10637-10675},
   Publisher = {APS},
   Year = {1991},
   Month = {November},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9999090},
   Keywords = {JUNCTIONS; TWO – DIMENSIONAL SYSTEMS; MAGNETIC FIELDS;
             TRANSPORT PROCESSES; CLASSICAL MECHANICS; ANOMALOUS
             PROPERTIES; BALLISTICS; HALL EFFECT; SCATTERING; INJECTION;
             MAGNETORESISTANCE},
   Key = {baranger:10637}
}

@article{Yoo04_spinchain,
   Author = {Yoo, J and Chandrasekharan, S and Kaul, RK and Ullmo, D and Baranger,
             HU},
   Title = {Cluster algorithms for quantum impurity models and
             mesoscopic Kondo physics},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {20},
   Pages = {201309(R)},
   Publisher = {cond-mat/0411313},
   Year = {2005},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/yoockub04_clusterqimp.pdf},
   Abstract = {Nanoscale physics and dynamical mean-field theory have both
             generated increased interest in complex quantum impurity
             problems and so have focused attention on the need for
             flexible quantum impurity solvers. Here we demonstrate that
             the mapping of single-quantum impurity problems onto spin
             chains can be exploited to yield a powerful and extremely
             flexible impurity solver. We implement this cluster
             algorithm explicitly for the Anderson and Kondo
             Hamiltonians, and illustrate its use in the "mesoscopic
             Kondo problem." To study universal Kondo physics, a large
             ratio between the effective bandwidth Deff and the
             temperature T is required; our cluster algorithm treats the
             mesoscopic fluctuations exactly while being able to approach
             the large Deff T limit with ease. We emphasize that the
             flexibility of our method allows it to tackle a wide variety
             of quantum impurity problems; thus, it may also be relevant
             to the dynamical mean-field theory of lattice problems. ©
             2005 The American Physical Society.},
   Doi = {10.1103/PhysRevB.71.201309},
   Key = {Yoo04_spinchain}
}

@article{fds245100,
   Author = {Liu, R and Ke, S-H and Yang, W and Baranger, HU},
   Title = {Cobaltocene as a spin filter.},
   Journal = {Journal of Chemical Physics},
   Volume = {127},
   Number = {14},
   Pages = {141104},
   Year = {2007},
   Month = {October},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/17935378},
   Abstract = {In the context of investigating organic molecules for
             molecular electronics, doping molecular wires with
             transition metal atoms provides additional means of
             controlling their transport behavior. The incorporation of
             transition metal atoms may generate spin dependence because
             the conduction channels of only one spin component align
             with the chemical potential of the leads, resulting in a
             spin polarized electric current. The possibility to create
             such a spin polarized current is investigated here with the
             organometallic moiety cobaltocene. According to our
             calculations, cobaltocene contacted with gold electrodes
             acts as a robust spin filter: Applying a voltage less than
             0.2 V causes the current of one spin component crossing the
             molecular bridge to be two orders of magnitude larger than
             the other. We address the key issue of sensitivity to
             molecule-lead geometry by showing that a weak barrier
             generated by CH(2) groups between the cobaltocene and the
             leads is crucial in reducing the sensitivity to the contact
             geometry while only reducing the current modestly. These
             results suggest cobaltocene as a robust basic building block
             for molecular spintronics.},
   Doi = {10.1063/1.2796151},
   Key = {fds245100}
}

@booklet{Rubio01,
   Author = {Rubio, J and Pfeiffer, L and Szymanska, MH and Pinczuk, A and He, S and Baranger, HU and Littlewood, PB and West, KW and Dennis,
             BS},
   Title = {Coexistence of excitonic lasing with electron-hole plasma
             spontaneous emission in one-dimensional semiconductor
             structures},
   Journal = {Solid State Communications},
   Volume = {120},
   Number = {11},
   Pages = {423-427},
   Year = {2001},
   ISSN = {0038-1098},
   url = {http://dx.doi.org/10.1016/S0038-1098(01)00418-5},
   Abstract = {We report that excitonic lasing gain coexists with
             spontaneous optical emission characteristic of an
             electron-hole plasma in highly photoexcited one-dimensional
             semiconductors. The experiments probe quantum T-wire laser
             structures optimized for high photoexcitation. Evidence of
             dense electron-hole plasma is clearly seen in the
             spontaneous recombination measured when lasing emission
             displays distinct excitonic character. These findings differ
             strikingly from those in higher dimentional semiconductors,
             and offer insights on optical processes considered by recent
             theories of dense electron-hole plasmas. © 2001 Published
             by Elsevier Science Ltd.},
   Doi = {10.1016/S0038-1098(01)00418-5},
   Key = {Rubio01}
}

@article{fds245191,
   Author = {Moustakas, AL and Baranger, HU and Balents, L and Sengupta, AM and Simon, SH},
   Title = {Communication through a diffusive medium: coherence and
             capacity},
   Journal = {Science},
   Volume = {287},
   Number = {5451},
   Pages = {287-290},
   Year = {2000},
   Month = {January},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10634779},
   Abstract = {Coherent wave propagation in disordered media gives rise to
             many fascinating phenomena as diverse as universal
             conductance fluctuations in mesoscopic metals and speckle
             patterns in light scattering. Here, the theory of
             electromagnetic wave propagation in diffusive media is
             combined with information theory to show how interference
             affects the information transmission rate between antenna
             arrays. Nontrivial dependencies of the information capacity
             on the nature of the antenna arrays are found, such as the
             dimensionality of the arrays and their direction with
             respect to the local scattering medium. This approach
             provides a physical picture for understanding the importance
             of scattering in the transfer of information through
             wireless communications.},
   Key = {fds245191}
}

@booklet{Moustakas00,
   Author = {A. L. Moustakas and H. U. Baranger and L. Balents and A. M. Sengupta and S. H. Simon},
   Title = {Communication through a diffusive medium: Coherence and
             capacity},
   Journal = {Science},
   Volume = {287},
   Number = {5451},
   Pages = {287 -- 290},
   Year = {2000},
   Month = {January},
   Key = {Moustakas00}
}

@article{jalabert:2442,
   Author = {Jalabert, RA and Baranger, HU and Stone, AD},
   Title = {Conductance fluctuations in the ballistic regime: A probe of
             quantum chaos?},
   Journal = {Physical Review Letters},
   Volume = {65},
   Number = {19},
   Pages = {2442-2445},
   Publisher = {APS},
   Year = {1990},
   Month = {November},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10042549},
   Keywords = {FLUCTUATIONS; SCATTERING; MAGNETIC FIELDS; CORRELATION
             FUNCTIONS; ENERGY; SEMICLASSICAL APPROXIMATION; NUMERICAL
             SOLUTION; CLASSICAL MECHANICS; CHAOTIC SYSTEMS; HALL EFFECT;
             JUNCTIONS; QUANTUM MECHANICS; TRAJECTORIES; CORRELATION
             LENGTH; DISKS},
   Doi = {10.1103/PhysRevLett.65.2442},
   Key = {jalabert:2442}
}

@article{Dong10_conductance,
   Author = {Liu, DE and Chandrasekharan, S and Baranger, HU},
   Title = {Conductance of quantum impurity models from quantum monte
             carlo},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {82},
   Number = {16},
   Pages = {165447},
   Year = {2010},
   ISSN = {1098-0121},
   url = {http://hdl.handle.net/10161/4258 Duke open
             access},
   Abstract = {The conductance of two Anderson impurity models, one with
             twofold and another with fourfold degeneracy, representing
             two types of quantum dots, is calculated using a world-line
             quantum Monte Carlo (QMC) method. Extrapolation of the
             imaginary time QMC data to zero frequency yields the linear
             conductance, which is then compared to numerical
             renormalization-group results in order to assess its
             accuracy. We find that the method gives excellent results at
             low temperature (T TK) throughout the mixed-valence and
             Kondo regimes but it is unreliable for higher temperature.
             © 2010 The American Physical Society.},
   Doi = {10.1103/PhysRevB.82.165447},
   Key = {Dong10_conductance}
}

@booklet{Nixon91a,
   Author = {Nixon, JA and Davies, JH and Baranger, HU},
   Title = {Conductance of quantum point contacts calculated using
             realistic potentials},
   Journal = {Superlattices and Microstructures},
   Volume = {9},
   Number = {2},
   Pages = {187-190},
   Year = {1991},
   ISSN = {0749-6036},
   url = {http://dx.doi.org/10.1016/0749-6036(91)90280-5},
   Abstract = {The quantized conductance of ballistic electrons in narrow
             constrictions requires the low scattering rates of a high
             mobility 2-dimensional electron gas(2DEG). Despite the
             spectacular mobilities of 2DEGs, quantization breaks down
             for constrictions longer than about 500 nm, whereas the mean
             free path in the ungated 2DEG may exceed 10 μm. We show
             that potential fluctuations from a random distribution of
             ionised donors modify the guiding potential from the gate in
             an unpredictable way. The fluctuations are responsible for
             the variability among nominally identical devices. For a
             short constriction (200 nm) the conductance can be well
             quantized. The accuracy of quantization in a longer
             constriction (600 nm) is reduced by scattering from the
             random potential of the donors. This occurs when the length
             scale of the constriction is greater than that of the
             fluctuations. The conductance characteristics depend
             strongly on the exact configuration of impurities. In some
             cases the random potential causes a resonance in the
             channel. © 1991.},
   Doi = {10.1016/0749-6036(91)90280-5},
   Key = {Nixon91a}
}

@article{Ke04_molectrans3,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Contact atomic structure and electron transport through
             molecules.},
   Journal = {Journal of Chemical Physics},
   Volume = {122},
   Number = {7},
   Pages = {074704},
   Publisher = {cond-mat/0405047},
   Year = {2005},
   Month = {February},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/15743262},
   Abstract = {Using benzene sandwiched between two Au leads as a model
             system, we investigate from first principles the change in
             molecular conductance caused by different atomic structures
             around the metal-molecule contact. Our motivation is the
             variable situations that may arise in break junction
             experiments; our approach is a combined density functional
             theory and Green function technique. We focus on effects
             caused by (1) the presence of an additional Au atom at the
             contact and (2) possible changes in the molecule-lead
             separation. The effects of contact atomic relaxation and two
             different lead orientations are fully considered. We find
             that the presence of an additional Au atom at each of the
             two contacts will increase the equilibrium conductance by up
             to two orders of magnitude regardless of either the lead
             orientation or different group-VI anchoring atoms. This is
             due to a resonance peak near the Fermi energy from the
             lowest energy unoccupied molecular orbital. In the
             nonequilibrium properties, the resonance peak manifests
             itself in a negative differential conductance. We find that
             the dependence of the equilibrium conductance on the
             molecule-lead separation can be quite subtle: either very
             weak or very strong depending on the separation
             regime.},
   Doi = {10.1063/1.1851496},
   Key = {Ke04_molectrans3}
}

@article{fds245101,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Contact transparency of nanotube-molecule-nanotube
             junctions.},
   Journal = {Physical Review Letters},
   Volume = {99},
   Number = {14},
   Pages = {146802},
   Year = {2007},
   Month = {October},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/17930697},
   Abstract = {The transparency of contacts between conjugated molecules
             and metallic single-walled carbon nanotubes is investigated
             using a single-particle Green's function method which
             combines a Landauer approach with ab initio density
             functional theory. We find that the overall conjugation
             required for good contact transparency is broken by
             connecting through a six-member ring on the tube. Full
             conjugation achieved by an all-carbon contact through a
             five-member ring leads to near perfect contact transparency
             for different conjugated molecular bridges.},
   Doi = {10.1103/PhysRevLett.99.146802},
   Key = {fds245101}
}

@article{Ghosal05_circdot1,
   Author = {Ghosal, A and Güçlü, AD and Umrigar, CJ and Ullmo, D and Baranger,
             HU},
   Title = {Correlation-induced inhomogeneity in circular quantum
             dots},
   Journal = {Nature Physics},
   Volume = {2},
   Number = {5},
   Pages = {336-340},
   Year = {2006},
   ISSN = {1745-2473},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/GhosalGUUB06_circdots1.pdf},
   Doi = {10.1038/nphys293},
   Key = {Ghosal05_circdot1}
}

@booklet{Matveev96,
   Author = {K. A. Matveev and L. I. Glazman and H. U. Baranger},
   Title = {Coulomb blockade of tunneling through a double quantum
             dot},
   Journal = {Physical Review B},
   Volume = {54},
   Number = {8},
   Pages = {5637 -- 5646},
   Year = {1996},
   Month = {August},
   Key = {Matveev96}
}

@article{matveev:5637,
   Author = {Matveev, KA and Glazman, LI and Baranger, HU},
   Title = {Coulomb blockade of tunneling through a double quantum
             dot.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {54},
   Number = {8},
   Pages = {5637-5646},
   Publisher = {APS},
   Year = {1996},
   Month = {August},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9986527},
   Keywords = {TUNNEL EFFECT; COULOMB FIELD; ELECTRIC CONDUCTIVITY;
             TEMPERATURE DEPENDENCE; FLUCTUATIONS; PEAKS; QUANTUM
             DOTS},
   Key = {matveev:5637}
}

@article{fds303610,
   Author = {Usaj, G and Baranger, HU},
   Title = {Coulomb Blockade Peak Spacing Distribution: The Interplay of
             Temperature and Spin},
   Journal = {Phys. Rev. B},
   Volume = {64},
   Number = {20},
   Pages = {201319},
   Year = {2001},
   ISSN = {0163-1829},
   url = {http://arxiv.org/abs/cond-mat/0108027v1},
   Abstract = {We calculate the Coulomb Blockade peak spacing distribution
             at finite temperature using the recently introduced
             ``universal Hamiltonian'' to describe the e-e interactions.
             We show that the temperature effect is important even at
             kT~0.1\Delta (\Delta is the single-particle mean level
             spacing). This sensitivity arises because: (1) exchange
             reduces the minimum energy of excitation from the ground
             state and (2) the entropic contribution depends on the
             change of the spin of the quantum dot. Including the leading
             corrections to the universal Hamiltonian yields results in
             quantitative agreement with the experiments. Surprisingly,
             temperature appears to be the most important
             effect.},
   Doi = {10.1103/PhysRevB.64.201319},
   Key = {fds303610}
}

@article{fds245111,
   Author = {Vorojtsov, S and Baranger, HU},
   Title = {Coulomb blockade peak spacings: Interplay of spin and
             dot-lead coupling},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {72},
   Number = {16},
   Pages = {024525},
   Publisher = {cond-mat/0505569},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/VorojtsovB05_dotleadcoup.pdf},
   Abstract = {For Coulomb blockade peaks in the linear conductance of a
             quantum dot, we study the correction to the spacing between
             the peaks due to dot-lead coupling. This coupling can affect
             measurements in which Coulomb blockade phenomena are used as
             a tool to probe the energy level structure of quantum dots.
             The electron-electron interactions in the quantum dot are
             described by the constant exchange and interaction (CEI)
             model while the single-particle properties are described by
             random matrix theory. We find analytic expressions for both
             the average and rms mesoscopic fluctuation of the
             correction. For a realistic value of the exchange
             interaction constant Js, the ensemble average correction to
             the peak spacing is two to three times smaller than that at
             Js=0. As a function of Js, the average correction to the
             peak spacing for an even valley decreases monotonically,
             nonetheless staying positive. The rms fluctuation is of the
             same order as the average and weakly depends on Js. For a
             small fraction of quantum dots in the ensemble, therefore,
             the correction to the peak spacing for the even valley is
             negative. The correction to the spacing in the odd valleys
             is opposite in sign to that in the even valleys and equal in
             magnitude. These results are robust with respect to the
             choice of the random matrix ensemble or change in parameters
             such as charging energy, mean level spacing, or temperature.
             © 2005 The American Physical Society.},
   Doi = {10.1103/PhysRevB.72.165349},
   Key = {fds245111}
}

@booklet{Usaj01,
   Author = {Usaj, G and Baranger, HU},
   Title = {Coulomb-blockade peak-spacing distribution: Interplay of
             temperature and spin},
   Journal = {Physical Review B},
   Volume = {6420},
   Number = {20},
   Pages = {art. no.-201319},
   Year = {2001},
   Month = {November},
   ISSN = {0163-1829},
   Abstract = {We calculate the Coulomb-blockade peak-spacing distribution
             at finite temperature using the recently introduced
             "universal Hamiltonian" to describe the e-e interactions. We
             show that the temperature effect is important even at
             kBT∼Δ (Δ is the single-particle mean level spacing).
             This sensitivity arises because: 1) exchange reduces the
             minimum energy of excitation from the ground state, and 2)
             the entropic contribution depends on the change of the spin
             of the quantum dot. Including the leading corrections to the
             universal Hamiltonian yields results in quantitative
             agreement with the experiments. Surprisingly, temperature
             appears to be the most important effect.},
   Key = {Usaj01}
}

@article{Novais05_qec1,
   Author = {Novais, E and Baranger, HU},
   Title = {Decoherence by correlated noise and quantum error
             correction.},
   Journal = {Physical Review Letters},
   Volume = {97},
   Number = {4},
   Pages = {040501},
   Year = {2006},
   Month = {July},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/16907555},
   Abstract = {We study the decoherence of a quantum computer in an
             environment which is inherently correlated in time and
             space. We first derive the nonunitary time evolution of the
             computer and environment in the presence of a stabilizer
             error correction code, providing a general way to quantify
             decoherence for a quantum computer. The general theory is
             then applied to the spin-boson model. Our results
             demonstrate that effects of long-range correlations can be
             systematically reduced by small changes in the error
             correction codes.},
   Doi = {10.1103/PhysRevLett.97.040501},
   Key = {Novais05_qec1}
}

@article{fds245047,
   Author = {Zheng, H and Gauthier, DJ and Baranger, HU},
   Title = {Decoy-state quantum key distribution with nonclassical light
             generated in a one-dimensional waveguide.},
   Journal = {Optics Letters},
   Volume = {38},
   Number = {5},
   Pages = {622-624},
   Year = {2013},
   Month = {March},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/23455244},
   Abstract = {We investigate a decoy-state quantum key distribution (QKD)
             scheme with a sub-Poissonian single-photon source, which is
             generated on demand by scattering a coherent state off a
             two-level system in a one-dimensional waveguide. We show
             that, compared to coherent state decoy-state QKD, there is a
             two-fold increase of the key generation rate. Furthermore,
             the performance is shown to be robust against both parameter
             variations and loss effects of the system.},
   Doi = {10.1364/OL.38.000622},
   Key = {fds245047}
}

@article{fds245188,
   Author = {Jiang, H and Baranger, HU and Yang, WT},
   Title = {Density-functional theory simulation of large quantum
             dots},
   Journal = {Physical Review B},
   Volume = {68},
   Number = {16},
   Pages = {1653371-1653379},
   Year = {2003},
   Month = {October},
   ISSN = {1098-0121},
   url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000186571800068&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
   Abstract = {Kohn-Sham spin-density functional theory provides an
             efficient and accurate model to study electron-electron
             interaction effects in quantum dots, but its application to
             large systems is a challenge. Here an efficient method for
             the simulation of quantum dots using density-function theory
             is developed; it includes the particle-in-the-box
             representation of the Kohn-Sham orbitals, an efficient
             conjugate-gradient method to directly minimize the total
             energy, a Fourier convolution approach for the calculation
             of the Hartree potential, and a simplified multigrid
             technique to accelerate the convergence. We test the
             methodology in a two-dimensional model system and show that
             numerical studies of large quantum dots with several hundred
             electrons become computationally affordable. In the
             noninteracting limit, the classical dynamics of the system
             we study can be continuously varied from integrable to fully
             chaotic. The qualitative difference in the noninteracting
             classical dynamics has an effect on the quantum properties
             of the interacting system: integrable classical dynamics
             leads to higher-spin states and a broader distribution of
             spacing between Coulomb blockade peaks.},
   Doi = {10.1103/PhysRevB.68.165337},
   Key = {fds245188}
}

@booklet{Jiang03,
   Author = {Jiang, H and Baranger, HU and Yang, W},
   Title = {Density-functional theory simulation of large quantum
             dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {68},
   Number = {16},
   Pages = {1653371-1653379},
   Year = {2003},
   ISSN = {0163-1829},
   url = {http://dx.doi.org/10.1103/PhysRevB.68.165337},
   Abstract = {Kohn-Sham spin-density functional theory provides an
             efficient and accurate model to study electron-electron
             interaction effects in quantum dots, but its application to
             large systems is a challenge. Here an efficient method for
             the simulation of quantum dots using density-function theory
             is developed; it includes the particle-in-the-box
             representation of the Kohn-Sham orbitals, an efficient
             conjugate-gradient method to directly minimize the total
             energy, a Fourier convolution approach for the calculation
             of the Hartree potential, and a simplified multigrid
             technique to accelerate the convergence. We test the
             methodology in a two-dimensional model system and show that
             numerical studies of large quantum dots with several hundred
             electrons become computationally affordable. In the
             noninteracting limit, the classical dynamics of the system
             we study can be continuously varied from integrable to fully
             chaotic. The qualitative difference in the noninteracting
             classical dynamics has an effect on the quantum properties
             of the interacting system: integrable classical dynamics
             leads to higher-spin states and a broader distribution of
             spacing between Coulomb blockade peaks.},
   Doi = {10.1103/PhysRevB.68.165337},
   Key = {Jiang03}
}

@article{Dong11_majoranadetect,
   Author = {Liu, DE and Baranger, HU},
   Title = {Detecting a Majorana-fermion zero mode using a quantum
             dot},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {84},
   Number = {20},
   Pages = {201308(R)},
   Year = {2011},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/LiuB11_majoranadetect.pdf},
   Abstract = {We propose an experimental setup for detecting a Majorana
             zero mode consisting of a spinless quantum dot coupled to
             the end of a p-wave superconducting nanowire. The Majorana
             bound state at the end of the wire strongly influences the
             conductance through the quantum dot: Driving the wire
             through the topological phase transition causes a sharp jump
             in the conductance by a factor of 1/2. In the topological
             phase, the zero-temperature peak value of the dot
             conductance (i.e., when the dot is on resonance and
             symmetrically coupled to the leads) is e2/2h. In contrast,
             if the wire is in its trivial phase, the conductance peak
             value is e2/h, or if a regular fermionic zero mode occurs on
             the end of the wire, the conductance is 0. The system can
             also be used to tune Flensberg's qubit system to the
             required degeneracy point. © 2011 American Physical
             Society.},
   Doi = {10.1103/PhysRevB.84.201308},
   Key = {Dong11_majoranadetect}
}

@article{fds318398,
   Author = {Jin, L-J and Houzet, M and Meyer, JS and Baranger, HU and Hekking,
             FWJ},
   Title = {Detecting photon-photon interactions in a superconducting
             circuit},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {92},
   Number = {13},
   Year = {2015},
   Month = {October},
   url = {http://dx.doi.org/10.1103/PhysRevB.92.134503},
   Doi = {10.1103/PhysRevB.92.134503},
   Key = {fds318398}
}

@article{fds245067,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Development of ab initio calculation for electron transport
             and the effects of lead and contact structures in molecular
             electronics},
   Journal = {Journal of computational and theoretical
             nanoscience},
   Volume = {3},
   Number = {5},
   Pages = {819-823},
   Year = {2006},
   ISSN = {1546-1955},
   url = {http://dx.doi.org/10.1166/jctn.2006.022},
   Abstract = {A fully self-consistent method combining density functional
             theory (DFT) and nonequilibrium Green function approach for
             calculating electron transport through molecular devices is
             reviewed. It uses periodic boundary conditions for DFT and
             treats the leads and molecule of a device system on the same
             footing. Also reviewed is its application for the molecular
             conductance of Au-benzenedithiol-Au systems. Two important
             issues in molecular electronics are discussed: (1) quantum
             confinement effects in thin electrodes (leads) and (2)
             effects of local atomic configuration around the contacts.
             Quantum-confinement- induced waveguide effect causes large
             oscillations in the transmission function. Single or double
             apex Au atoms at each contact lead to a significant
             conductance resonance, which is quite similar to increasing
             the molecule-lead separation. Copyright © 2006 American
             Scientific Publishers All rights reserved.},
   Doi = {10.1166/jctn.2006.022},
   Key = {fds245067}
}

@article{fds318397,
   Author = {Bera, S and Baranger, HU and Florens, S},
   Title = {Dynamics of a qubit in a high-impedance transmission line
             from a bath perspective},
   Journal = {Physical Review A},
   Volume = {93},
   Number = {3},
   Year = {2016},
   Month = {March},
   url = {http://dx.doi.org/10.1103/PhysRevA.93.033847},
   Doi = {10.1103/PhysRevA.93.033847},
   Key = {fds318397}
}

@booklet{Baranger95a,
   Author = {Baranger, HU and Mello, PA},
   Title = {Effect of phase breaking on quantum transport through
             chaotic cavities.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {51},
   Number = {7},
   Pages = {4703-4706},
   Publisher = {APS},
   Year = {1995},
   Month = {February},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9979331},
   Keywords = {CHAOTIC SYSTEMS; CAVITIES; QUANTUM DOTS; TRANSPORT
             PROCESSES; INTERFERENCE; PHASE SHIFT; S MATRIX; ANALYTICAL
             SOLUTION},
   Key = {Baranger95a}
}

@article{baranger:8169,
   Author = {Baranger, HU and Stone, AD},
   Title = {Electrical linear-response theory in an arbitrary magnetic
             field: A new Fermi-surface formation.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {40},
   Number = {12},
   Pages = {8169-8193},
   Publisher = {APS},
   Year = {1989},
   Month = {October},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9991272},
   Keywords = {MAGNETIC FIELDS; QUANTUM HALL EFFECT; ELECTRIC CONDUCTORS;
             ELECTRON MOBILITY; ELECTRIC CURRENTS; RESPONSE FUNCTIONS;
             SEMICONDUCTOR MATERIALS; TRANSPORT PROCESSES},
   Key = {baranger:8169}
}

@booklet{Baranger89,
   Author = {H. U. Baranger and A. D. Stone},
   Title = {Electrical linear-response theory in an arbitrary
             magnetic-field - a new fermi-surface formation},
   Journal = {Physical Review B},
   Volume = {40},
   Number = {12},
   Pages = {8169 -- 8193},
   Year = {1989},
   Month = {October},
   Key = {Baranger89}
}

@article{Ke04_molecgate,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Electron transport through molecules: Gate-induced
             polarization and potential shift},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {11},
   Pages = {113401},
   Publisher = {cond-mat/046640},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/keby04_gatepolar.pdf},
   Abstract = {We analyze the effect of a gate on the conductance of
             molecules by separately evaluating the gate-induced
             polarization and the potential shift of the molecule
             relative to the leads. The calculations use ab initio
             density functional theory combined with a Green function
             method for electron transport. For a general view, we study
             several systems: (1) atomic chains of C or Al sandwiched
             between Al electrodes, (2) a benzene molecule between Au
             leads, and (3) (9,0) and (5,5) carbon nanotubes. We find
             that the polarization effect is small because of screening,
             while the effect of the potential shift is significant,
             providing a mechanism for single-molecule transistors.
             ©2005 The American Physical Society.},
   Doi = {10.1103/PhysRevB.71.113401},
   Key = {Ke04_molecgate}
}

@article{Ke04_molectrans1,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Electron transport through molecules: Self-consistent and
             non-self-consistent approaches},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {70},
   Number = {8},
   Pages = {085410-1-085410-12},
   Year = {2004},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/jianguyb04_dftreal1.pdf},
   Keywords = {density functional theory; Green's function methods;
             transport processes; molecular electronics; carbon;
             aluminium; contact potential},
   Abstract = {A self-consistent method for calculating electron transport
             through a molecular device is developed. It is based on
             density functional theory electronic structure calculations
             under periodic boundary conditions and implemented in the
             framework of the nonequilibrium Green function approach. To
             avoid the substantial computational cost in finding the I-V
             characteristic of large systems, we also develop an
             approximate but much more efficient non-self-consistent
             method. Here the change in effective potential in the device
             region caused by a bias is approximated by the main features
             of the voltage drop. As applications, the I-V curves of a
             carbon chain and an aluminum chain sandwiched between two
             aluminum electrodes are calculated-two systems in which the
             voltage drops very differently. By comparing to the
             self-consistent results, we show that this
             non-self-consistent approach works well and can give
             quantitatively good results.},
   Doi = {10.1103/PhysRevB.70.085410},
   Key = {Ke04_molectrans1}
}

@article{fds245099,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Electron transport through single conjugated organic
             molecules: basis set effects in ab initio
             calculations.},
   Journal = {Journal of Chemical Physics},
   Volume = {127},
   Number = {14},
   Pages = {144107},
   Year = {2007},
   Month = {October},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/17935386},
   Abstract = {We investigate electron transport through single conjugated
             molecules--including benzenedithiol, oligophenylene
             ethynylenes of different lengths, and a ferrocene-containing
             molecule sandwiched between two gold electrodes with
             different contact structures--by using a single-particle
             Green function method combined with density functional
             theory calculation. We focus on the effect of the basis set
             in the ab initio calculation. It is shown that the position
             of the Fermi energy in the transport gap is sensitive to the
             molecule-lead charge transfer which is affected by the size
             of basis set. This can dramatically change, by orders of
             magnitude, the conductance for long molecules, though the
             effect is only minor for short ones. A resonance around the
             Fermi energy tends to pin the position of the Fermi energy
             and suppress this effect. The result is discussed in
             comparison with experimental data.},
   Doi = {10.1063/1.2770718},
   Key = {fds245099}
}

@article{Jiang04_statistics,
   Author = {Jiang, H and Ullmo, D and Yang, W and Baranger, HU},
   Title = {Electron-electron interactions in isolated and realistic
             quantum dots: A density functional theory
             study},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {69},
   Number = {23},
   Pages = {235326-1-235326-10},
   Year = {2004},
   ISSN = {0163-1829},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/jianguyb04_dftreal1.pdf},
   Keywords = {quantum dots; electron-electron interactions; density
             functional theory; spin dynamics},
   Abstract = {We use Kohn-Sham spin-density-functional theory to study the
             statistics of ground-state spin and the spacing between
             conductance peaks in the Coulomb blockade regime for both
             two-dimensional isolated and realistic quantum dots. We make
             a systematic investigation of the effects of
             electron-electron interaction strength and electron number
             on both the peak spacing and spin distributions. A direct
             comparison between the distributions from isolated and
             realistic dots shows that, despite the difference in the
             boundary conditions and confining potential, the statistical
             properties are qualitatively the same. Strong even/odd
             pairing in the peak spacing distribution is observed only in
             the weak e-e interaction regime and vanishes for moderate
             interactions. The probability of high spin ground states
             increases for stronger e-e interaction and seems to saturate
             around rs ∼4. The saturated value is larger than previous
             theoretical predictions. Both spin and conductance peak
             spacing distributions show substantial variation as the
             electron number increases, not saturating until N ∼150. To
             interpret our numerical results, we analyze the spin
             distribution in the even N case using a simple two-level
             model.},
   Doi = {10.1103/PhysRevB.69.235326},
   Key = {Jiang04_statistics}
}

@booklet{Mello95,
   Author = {Mello, PA and Baranger, HU},
   Title = {Electronic transport through ballistic chaotic cavities: an
             information theoretic approach},
   Journal = {Physica A: Statistical Mechanics and its
             Applications},
   Volume = {220},
   Number = {1-2},
   Pages = {15-23},
   Year = {1995},
   ISSN = {0378-4371},
   url = {http://dx.doi.org/10.1016/0378-4371(95)00121-M},
   Abstract = {The statistical properties of the electronic conductance
             through a ballistic quantum dot are studied by means of an
             information-theoretic statistical model for the scattering
             matrix. The model, introduced in the past in the context of
             nuclear physics, describes the problem in terms of a prompt
             and an equilibrated component: it incorporates the average
             value of the scattering matrix to describe the prompt
             processes and satisfies the requirements of flux
             conservation, causality and ergodicity. The model describes
             well the results arising from the numerical solution of the
             Schrödinger equation for two-dimensional quantum cavities.
             © 1995.},
   Doi = {10.1016/0378-4371(95)00121-M},
   Key = {Mello95}
}

@article{fds245061,
   Author = {Kaul, RK and Ullmo, D and Baranger, HU},
   Title = {Erratum: Mesoscopic fluctuations in quantum dots in the
             Kondo regime (Physical Review B - Condensed Matter and
             Materials Physics (October 14, 2003) 68 (161305) (DOI:
             10.1103/PhysRevB.69.089902))},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {69},
   Number = {8},
   Pages = {899021-},
   Year = {2004},
   ISSN = {0163-1829},
   Key = {fds245061}
}

@article{fds245064,
   Author = {Usaj, G and Baranger, HU},
   Title = {Erratum: Mesoscopic tunneling magnetoresistance (Physical
             Review B- Condensed Matter and Materials Physics (2001) 63
             (184418))},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {17},
   Year = {2005},
   url = {http://dx.doi.org/10.1103/PhysRevB.71.179903},
   Doi = {10.1103/PhysRevB.71.179903},
   Key = {fds245064}
}

@article{fds304505,
   Author = {Chang, AM and Chang, TY and Baranger, HU},
   Title = {Erratum: Quenching of the Hall resistance in a novel
             geometry (Physical Review Letters (1989) 63, 996
             (2695))},
   Journal = {Physical Review Letters},
   Volume = {63},
   Number = {24},
   Pages = {2695-},
   Year = {1989},
   ISSN = {0031-9007},
   url = {http://dx.doi.org/10.1103/PhysRevLett.63.2695.4},
   Doi = {10.1103/PhysRevLett.63.2695.4},
   Key = {fds304505}
}

@article{chang:2695,
   Author = {Chang, AM and Chang, TY and Baranger, HU},
   Title = {Erratum: Quenching of the Hall resistance in a novel
             geometry [Phys. Rev. Lett. [bold 63], 996
             (1989)]},
   Journal = {Phys. Rev. Lett.},
   Volume = {63},
   Number = {24},
   Pages = {2695-2695},
   Publisher = {APS},
   Year = {1989},
   ISSN = {0031-9007},
   url = {http://link.aps.org/abstract/PRL/v63/p2695/s4},
   Doi = {10.1103/PhysRevLett.63.2695.4},
   Key = {chang:2695}
}

@booklet{Usaj03,
   Author = {Usaj, G and Baranger, HU},
   Title = {Exchange and the Coulomb blockade: Peak height statistics in
             quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {67},
   Number = {12},
   Pages = {1213081-1213084},
   Year = {2003},
   ISSN = {0163-1829},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/usajb03_exch.pdf},
   Abstract = {We study the effect of the exchange interaction on the
             Coulomb blockade peak height statistics in chaotic quantum
             dots. Since exchange reduces the level repulsion in the
             many-body spectrum, it strongly affects the fluctuations of
             the peak conductance at finite temperature. We find that
             including exchange substantially improves the description of
             the experimental data. Moreover, it provides further
             evidence of the presence of high-spin states (S ≥ 1) in
             such systems.},
   Key = {Usaj03}
}

@article{fds245069,
   Author = {Sulak, L and Armstrong, T and Baranger, H and Bregman, M and Levi, M and Mael, D and Strait, J and Bowen, T and Pifer, AE and Polakos, PA and Bradner, H and Parvulescu, A and Jones, WV and Learned,
             J},
   Title = {Experimental studies of the acoustic signature of proton
             beams traversing fluid media},
   Journal = {Nuclear Instruments and Methods},
   Volume = {161},
   Number = {2},
   Pages = {203-217},
   Year = {1979},
   ISSN = {0029-554X},
   url = {http://dx.doi.org/10.1016/0029-554X(79)90386-0},
   Abstract = {Recent experiments at Brookhaven National Laboratory and
             Harvard University demonstrate that a detectable sonic
             signal is produced by energetic proton beams while
             traversing a fluid medium. The observed acoustic wave agrees
             with the predictions of a thermal expansion model. Results
             are inconsistent with any significant contribution from
             either microbubble implosion or molecular dissociation, two
             other suggested means of sonic production. Frequency and
             amplitude distributions, radiation patterns, temperature,
             pressure, and medium dependencies are explored. This
             phenomenon may have immediate applications in beam
             monitoring and in detecting energetic heavy ions. Signal
             thresholds may be enough to permit detection of particle
             showers induced by single particles at the next generation
             of high energy accelerators or from high energy cosmic rays.
             The inexpensive transducers and long sonic transmission
             lengths obtainable in liquids suggest that high energy
             particle detectors may be feasible with masses many orders
             of magnitude greater than those currently in use. ©
             1979.},
   Doi = {10.1016/0029-554X(79)90386-0},
   Key = {fds245069}
}

@article{fds245070,
   Author = {Levi, M and Armstrong, T and Baranger, H and Bregman, M and Mael, D and Strait, J and Sulak, L and Bowen, T and Pifer, B and Polakos, P and Bradner, H and Parvulescu, A and Jones, H and Learned,
             J},
   Title = {EXPERIMENTAL STUDIES OF THE ACOUSTIC SIGNATURE OF PROTON
             BEAMS TRAVERSING FLUID MEDIA.},
   Journal = {IEEE Transactions on Nuclear Science},
   Volume = {NS 25},
   Number = {1},
   Pages = {325-332},
   Year = {1977},
   url = {http://dx.doi.org/10.1109/TNS.1978.4329325},
   Abstract = {This work establishes that a detectable sonic signal is
             produced by protons while traversing through or stopping in
             a fluid medium. Experiments exploring the global
             characteristics of both the acoustic generation mechanism
             and the radiation pattern performed at three different
             accelerators. The results are consistent with a simple
             thermal model for the transformation of the energy of moving
             charged particles into acoustic energy. This phenomenon
             could be exploited in several applications: (1) as a charged
             particle monitor in accelerator beams, (2) as a heavy ion
             detector sensitive to nuclear charge, e. g. , in measuring
             the cosmic ray isotope as an inexpensive shower detector in
             massive neutrino detectors at the next generation of high
             energy accelerators, e. g, the Fermilab energy doubler and
             (4) as the shower calorimeter (and perhaps the muon
             detector) in massive deep underwater detectors of cosmic
             neutrino and muon interactions.},
   Doi = {10.1109/TNS.1978.4329325},
   Key = {fds245070}
}

@article{fds245122,
   Author = {Hentschel, M and Ullmo, D and Baranger, HU},
   Title = {Fermi edge singularities in the mesoscopic regime: Anderson
             orthogonality catastrophe},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {72},
   Number = {3},
   Pages = {035310},
   Publisher = {cond-mat/0503330},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/HentschelUB05_aoc.pdf},
   Abstract = {For generic mesoscopic systems, such as quantum dots or
             nanoparticles, we study the Anderson orthogonality
             catastrophe (AOC) and Fermi-edge singularities in
             photoabsorption spectra in a series of two papers. In the
             present paper we focus on AOC for a finite number of
             particles in discrete energy levels where, in contrast to
             the bulk situation, AOC is not complete. Moreover,
             fluctuations characteristic for mesoscopic systems lead to a
             broad distribution of AOC ground-state overlaps. The
             fluctuations originate dominantly in the levels around the
             Fermi energy, and we derive an analytic expression for the
             probability distribution of AOC overlaps in the limit of
             strong perturbations. We address the formation of a bound
             state and its importance for symmetries between the overlap
             distributions for attractive and repulsive potentials. Our
             results are based on a random matrix model for the chaotic
             conduction electrons that are subject to a rank-one
             perturbation corresponding, for example, to the localized
             core hole generated in the photoabsorption process. © 2005
             The American Physical Society.},
   Doi = {10.1103/PhysRevB.72.035310},
   Key = {fds245122}
}

@article{fds245093,
   Author = {Hentschel, M and Ullmo, D and Baranger, HU},
   Title = {Fermi edge singularities in the mesoscopic regime:
             Photoabsorption spectra},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {76},
   Number = {24},
   Pages = {245419},
   Year = {2007},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/HentschelUB07_mesfes2.pdf},
   Abstract = {We study Fermi edge singularities in photoabsorption spectra
             of generic mesoscopic systems such as quantum dots or
             nanoparticles. We predict deviations from
             macroscopic-metallic behavior and propose experimental
             setups for the observation of these effects. The theory is
             based on the model of a localized, or rank one, perturbation
             caused by the (core) hole left behind after the
             photoexcitation of an electron into the conduction band. The
             photoabsorption spectra result from the competition between
             two many-body responses, Anderson's orthogonality
             catastrophe and the Mahan-Nozières-DeDominicis
             contribution. Both mechanisms depend on the system size
             through the number of particles and, more importantly,
             fluctuations produced by the coherence characteristic of
             mesoscopic samples. The latter lead to a modification of the
             dipole matrix element and trigger one of our key results: a
             rounded K -edge typically found in metals will turn into a
             (slightly) peaked edge on average in the mesoscopic regime.
             We consider in detail the effect of the "bound state"
             produced by the core hole. © 2007 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.76.245419},
   Key = {fds245093}
}

@article{fds245167,
   Author = {Hentschel, M and Ullmo, D and Baranger, HU},
   Title = {Fermi-edge singularities in the mesoscopic x-ray edge
             problem.},
   Journal = {Physical Review Letters},
   Volume = {93},
   Number = {17},
   Pages = {176807},
   Publisher = {cond-mat/0402207},
   Year = {2004},
   Month = {October},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/15525108},
   Abstract = {We study the x-ray edge problem for a chaotic quantum dot or
             nanoparticle displaying mesoscopic fluctuations. In the
             bulk, x-ray physics is known to produce Fermi-edge
             singularities-deviations from the naively expected
             photoabsorption cross section in the form of a peaked or
             rounded edge. For a coherent system with chaotic dynamics,
             we find substantial changes; in particular, a
             photoabsorption cross section showing a rounded edge in the
             bulk will change to a slightly peaked edge on average as the
             system size is reduced to a mesoscopic (coherent)
             scale.},
   Doi = {10.1103/PhysRevLett.93.176807},
   Key = {fds245167}
}

@article{fds221154,
   Author = {D. Ullmo and D. E. Liu and S. Burdin and H. U.
             Baranger},
   Title = {Fermi-liquid regime of the mesoscopic Kondo
             problem},
   Journal = {Eur. Phys. J. B},
   Volume = {86},
   Pages = {353},
   Year = {2013},
   Month = {August},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/UllmoLBB_fermiliqmesoKondo.pdf},
   Doi = {10.1140/epjb/e2013-40418-3},
   Key = {fds221154}
}

@article{fds245046,
   Author = {Liu, DE and Levchenko, A and Baranger, HU},
   Title = {Floquet Majorana fermions for topological qubits in
             superconducting devices and cold-atom systems.},
   Journal = {Physical Review Letters},
   Volume = {111},
   Number = {4},
   Pages = {047002},
   Year = {2013},
   Month = {July},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/23931396},
   Abstract = {We develop an approach to realizing a topological phase
             transition and non-Abelian braiding statistics with
             dynamically induced Floquet Majorana fermions (FMFs). When
             the periodic driving potential does not break fermion parity
             conservation, FMFs can encode quantum information.
             Quasienergy analysis shows that a stable FMF zero mode and
             two other satellite modes exist in a wide parameter space
             with large quasienergy gaps, which prevents transitions to
             other Floquet states under adiabatic driving. We also show
             that in the asymptotic limit FMFs preserve non-Abelian
             braiding statistics and, thus, behave like their equilibrium
             counterparts.},
   Doi = {10.1103/PhysRevLett.111.047002},
   Key = {fds245046}
}

@article{fds245075,
   Author = {Liu, DE and Burdin, S and Baranger, HU and Ullmo,
             D},
   Title = {From weak- to strong-coupling mesoscopic Fermi
             liquids},
   Journal = {EPL (Europhysics Letters)},
   Volume = {97},
   Number = {1},
   Pages = {17006},
   Year = {2012},
   ISSN = {0295-5075},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/LiuBBU11_weaktostrong.pdf},
   Abstract = {We study mesoscopic fluctuations in a system in which there
             is a continuous connection between two distinct Fermi
             liquids, asking whether the mesoscopic variation in the two
             limits is correlated. The particular system studied is an
             Anderson impurity coupled to a finite mesoscopic reservoir
             described by the random matrix theory, a structure which can
             be realized using quantum dots. We use the slave boson
             mean-field approach to connect the levels of the uncoupled
             system to those of the strong-coupling Nozières' Fermi
             liquid. We find strong but not complete correlation between
             the mesoscopic properties in the two limits and several
             universal features. © 2012 Europhysics Letters
             Association.},
   Doi = {10.1209/0295-5075/97/17006},
   Key = {fds245075}
}

@article{fds245042,
   Author = {Bera, S and Nazir, A and Chin, AW and Baranger, HU and Florens,
             S},
   Title = {Generalized multipolaron expansion for the spin-boson model:
             Environmental entanglement and the biased two-state
             system},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {90},
   Number = {7},
   Pages = {075110},
   Year = {2014},
   Month = {August},
   ISSN = {1098-0121},
   url = {http://arxiv.org/pdf/1406.4983v2.pdf},
   Doi = {10.1103/PhysRevB.90.075110},
   Key = {fds245042}
}

@booklet{Baranger90a,
   Author = {Baranger, HU and Stone, AD},
   Title = {Geometrical effects on the Hall resistance in ballistic
             microstructures},
   Journal = {Surface Science},
   Volume = {229},
   Number = {1-3},
   Pages = {212-215},
   Year = {1990},
   ISSN = {0039-6028},
   Abstract = {We calculate the Hall resistance of four-probe junctions
             with unusual geometries similar to those used in recent
             experiments. We find a variety of behavior, including
             quenching at low magnetic fields and a negative Hall
             resistance at low fields. Our results are in excellent
             agreement with the experiments and are explained naturally
             through the concept of collimation of the electrons in the
             leads. In particular, we find that a gradually changing
             width is necessary on all four leads in order to produce
             good quenching, and that a negative Hall resistance in a
             widened cross structure requires both a region of gradual
             widening to provide collimation and a region of rapid
             widening to reflect the collimated beam. ©
             1990.},
   Key = {Baranger90a}
}

@article{fds245084,
   Author = {Wurm, J and Wimmer, M and Baranger, HU and Richter,
             K},
   Title = {Graphene rings in magnetic fields: Aharonov-Bohm effect and
             valley splitting},
   Journal = {Semiconductor Science and Technology},
   Volume = {25},
   Number = {3},
   Pages = {034003},
   Year = {2010},
   ISSN = {0268-1242},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/WurmWBR09_graphenerings.pdf},
   Abstract = {We study the conductance of mesoscopic graphene rings in the
             presence of a perpendicular magnetic field by means of
             numerical calculations based on a tight-binding model.
             First, we consider the magnetoconductance of such rings and
             observe the Aharonov-Bohm effect. We investigate different
             regimes of the magnetic flux up to the quantum Hall regime,
             where the Aharonov-Bohm oscillations are suppressed. Results
             for both clean (ballistic) and disordered (diffusive) rings
             are presented. Second, we study rings with smooth mass
             boundary that are weakly coupled to leads. We show that the
             valley degeneracy of the eigenstates in closed graphene
             rings can be lifted by a small magnetic flux, and that this
             lifting can be observed in the transport properties of the
             system. © 2010 IOP Publishing Ltd.},
   Doi = {10.1088/0268-1242/25/3/034003},
   Key = {fds245084}
}

@article{fds245089,
   Author = {Kaul, RK and Ullmo, D and Zaránd, G and Chandrasekharan, S and Baranger, HU},
   Title = {Ground state and excitations of quantum dots with magnetic
             impurities},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {80},
   Number = {3},
   Year = {2009},
   ISSN = {1098-0121},
   url = {http://dx.doi.org/10.1103/PhysRevB.80.035318},
   Abstract = {We consider an "impurity" with a spin degree of freedom
             coupled to a finite reservoir of noninteracting electrons, a
             system which may be realized by either a true impurity in a
             metallic nanoparticle or a small quantum dot coupled to a
             large one. We show how the physics of such a spin impurity
             is revealed in the many-body spectrum of the entire
             finite-size system; in particular, the evolution of the
             spectrum with the strength of the impurity-reservoir
             coupling reflects the fundamental many-body correlations
             present. Explicit calculation in the strong- and the
             weak-coupling limits shows that the spectrum and its
             evolution are sensitive to the nature of the impurity and
             the parity of electrons in the reservoir. The effect of the
             finite-size spectrum on two experimental observables is
             considered. First, we propose an experimental setup in which
             the spectrum may be conveniently measured using tunneling
             spectroscopy. A rate equation calculation of the
             differential conductance suggests how the many-body spectral
             features may be observed. Second, the finite-temperature
             magnetic susceptibility is presented, both the impurity and
             the local susceptibilities. Extensive quantum Monte Carlo
             calculations show that the local susceptibility deviates
             from its bulk scaling form. Nevertheless, for special
             assumptions about the reservoir-the "clean Kondo box"
             model-we demonstrate that finite-size scaling is recovered.
             Explicit numerical evaluations of these scaling functions
             are given, both for even and odd parities and for the
             canonical and the grand-canonical ensembles. © 2009 The
             American Physical Society.},
   Doi = {10.1103/PhysRevB.80.035318},
   Key = {fds245089}
}

@article{Kaul08_Kspect2,
   Author = {R. K. Kaul and D. Ullmo and G. Zarand and S. Chandrasekharan and H. U. Baranger},
   Title = {Ground State Excitations of Quantum Dots with ``Magnetic
             Impurities''},
   Journal = {Phys. Rev. B},
   Volume = {80},
   Pages = {035318},
   Year = {2009},
   Month = {July},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/KaulUZCB09_longkondo.pdf},
   Key = {Kaul08_Kspect2}
}

@article{fds318399,
   Author = {Novais, E and Mucciolo, ER and Baranger, HU},
   Title = {Hamiltonian Formulation of Quantum Error Correction and
             Correlated Noise},
   Journal = {CoRR},
   Volume = {abs/0710.1624},
   Year = {2007},
   Key = {fds318399}
}

@article{fds245091,
   Author = {Novais, E and Mucciolo, ER and Baranger, HU},
   Title = {Hamiltonian formulation of quantum error correction and
             correlated noise: Effects of syndrome extraction in the
             long-time limit},
   Journal = {Physical Review A - Atomic, Molecular, and Optical
             Physics},
   Volume = {78},
   Number = {1},
   Pages = {012314 (18 pages)},
   Year = {2008},
   ISSN = {1050-2947},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/NovaisBM07_qec3.pdf},
   Abstract = {We analyze the long-time behavior of a quantum computer
             running a quantum error correction (QEC) code in the
             presence of a correlated environment. Starting from a
             Hamiltonian formulation of realistic noise models, and
             assuming that QEC is indeed possible, we find formal
             expressions for the probability of a given syndrome history
             and the associated residual decoherence encoded in the
             reduced density matrix. Systems with nonzero gate times
             ("long gates") are included in our analysis by using an
             upper bound on the noise. In order to introduce the local
             error probability for a qubit, we assume that propagation of
             signals through the environment is slower than the QEC
             period (hypercube assumption). This allows an explicit
             calculation in the case of a generalized spin-boson model
             and a quantum frustration model. The key result is a
             dimensional criterion: If the correlations decay
             sufficiently fast, the system evolves toward a stochastic
             error model for which the threshold theorem of
             fault-tolerant quantum computation has been proven. On the
             other hand, if the correlations decay slowly, the
             traditional proof of this threshold theorem does not hold.
             This dimensional criterion bears many similarities to
             criteria that occur in the theory of quantum phase
             transitions. © 2008 The American Physical
             Society.},
   Doi = {10.1103/PhysRevA.78.012314},
   Key = {fds245091}
}

@article{fds221156,
   Author = {E. Novais and E. R. Mucciolo and H. U. Baranger},
   Title = {Hamiltonian Methods in Quantum Error Correction and Fault
             Tolerance},
   Pages = {585-611},
   Booktitle = {Quantum Error Correction},
   Publisher = {Cambridge University Press},
   Editor = {D. Lidar and P. Zanardi},
   Year = {2013},
   Month = {August},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/NovaisMB09_qecbook.pdf},
   Key = {fds221156}
}

@booklet{Baranger85a,
   Author = {Baranger, HU and MacDonald, AH and Leavens, CR},
   Title = {Heterocontact effects in point-contact electron-phonon
             spectroscopy of the alkali metals.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {31},
   Number = {10},
   Pages = {6197-6206},
   Year = {1985},
   Month = {May},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9935491},
   Key = {Baranger85a}
}

@article{fds245094,
   Author = {Hentschel, M and Valente, DCB and Mucciolo, ER and Baranger,
             HU},
   Title = {Improving intrinsic decoherence in multiple-quantum-dot
             charge qubits},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {76},
   Number = {23},
   Pages = {235309},
   Year = {2007},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/HentschelVMB07_3dotqubit.pdf},
   Abstract = {We discuss decoherence in charge qubits formed by multiple
             lateral quantum dots in the framework of the spin-boson
             model and the Born-Markov approximation. We consider the
             intrinsic decoherence caused by the coupling to bulk phonon
             modes. Two distinct quantum dot configurations are studied:
             (i) Three quantum dots in a ring geometry with one excess
             electron in total and (ii) arrays of quantum dots where the
             computational basis states form multipole charge
             configurations. For the three-dot qubit, we demonstrate the
             possibility of performing one- and two-qubit operations by
             solely tuning gate voltages. Compared to a previous proposal
             involving a linear three-dot spin qubit, the three-dot
             charge qubit allows for less overhead on two-qubit
             operations. For small interdot tunnel amplitudes, the
             three-dot qubits have Q factors much higher than those
             obtained for double-dot systems. The high-multipole dot
             configurations also show a substantial decrease in
             decoherence at low operation frequencies when compared to
             the double-dot qubit. © 2007 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.76.235309},
   Key = {fds245094}
}

@article{fds245102,
   Author = {Ghosal, A and Güçlü, AD and Umrigar, CJ and Ullmo, D and Baranger,
             HU},
   Title = {Incipient Wigner localization in circular quantum
             dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {76},
   Number = {8},
   Pages = {085341},
   Year = {2007},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/GhosalGUUB06_circdots2.pdf},
   Abstract = {We study the development of electron-electron correlations
             in circular quantum dots as the density is decreased. We
             consider a wide range of both electron number, N≤20, and
             electron gas parameter, rs 18, using the diffusion quantum
             Monte Carlo technique. Features associated with correlation
             appear to develop very differently in quantum dots than in
             bulk. The main reason is that translational symmetry is
             necessarily broken in a dot, leading to density modulation
             and inhomogeneity. Electron-electron interactions act to
             enhance this modulation ultimately leading to localization.
             This process appears to be completely smooth and occurs over
             a wide range of density. Thus there is a broad regime of
             "incipient" Wigner crystallization in these quantum dots.
             Our specific conclusions are (i) the density develops sharp
             rings while the pair density shows both radial and angular
             inhomogeneity; (ii) the spin of the ground state is
             consistent with Hund's (first) rule throughout our entire
             range of rs for all 4≤N≤20; (iii) the addition energy
             curve first becomes smoother as interactions strengthen-the
             mesoscopic fluctuations are damped by correlation-and then
             starts to show features characteristic of the classical
             addition energy; (iv) localization effects are stronger for
             a smaller number of electrons; (v) finally, the gap to
             certain spin excitations becomes small at the strong
             interaction (large rs) side of our regime. © 2007 The
             American Physical Society.},
   Doi = {10.1103/PhysRevB.76.085341},
   Key = {fds245102}
}

@article{hastings:8230,
   Author = {Hastings, MB and Stone, AD and Baranger, HU},
   Title = {Inequivalence of weak localization and coherent
             backscattering.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {50},
   Number = {12},
   Pages = {8230-8244},
   Publisher = {APS},
   Year = {1994},
   Month = {September},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9974840},
   Keywords = {COHERENT SCATTERING; BACKSCATTERING; DISORDERED SYSTEMS;
             ELECTRIC CONDUCTIVITY; LOCALIZED STATES; CHAOTIC SYSTEMS;
             REFLECTION; BALLISTICS; SYMMETRY; ELECTRIC
             CONDUCTORS},
   Key = {hastings:8230}
}

@article{fds245118,
   Author = {Ghosal, A and Umrigar, CJ and Jiang, H and Ullmo, D and Baranger,
             HU},
   Title = {Interaction Effects in Irregular Quantum Dots: A Quantum
             Monte Carlo Study},
   Journal = {Phys. Rev. B},
   Volume = {71},
   Pages = {241306(R)},
   Publisher = {cond-mat/0411242},
   Year = {2005},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/ghosalujub04_qmcqdot.pdf},
   Key = {fds245118}
}

@article{fds245066,
   Author = {Ghosal, A and Umrigar, CJ and Jiang, H and Ullmo, D and Baranger,
             HU},
   Title = {Interaction effects in the mesoscopic regime: A quantum
             Monte Carlo study of irregular quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {24},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://dx.doi.org/10.1103/PhysRevB.71.241306},
   Abstract = {We address the issue of accurately treating interaction
             effects in the mesoscopic regime by investigating the
             ground-state properties of isolated irregular quantum dots.
             Quantum Monte Carlo techniques are used to calculate the
             distributions of ground-state spin and addition energy. We
             find a reduced probability of high spin and a somewhat
             larger even/odd alternation in the addition energy from
             quantum Monte Carlo than in local spin-density-functional
             theory. In both approaches, the even/odd effect gets smaller
             with increasing number of electrons, contrary to the
             theoretical understanding of large dots. We argue that the
             local spin-density approximation overpredicts the effects of
             interactions in quantum dots. © 2005 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.71.241306},
   Key = {fds245066}
}

@booklet{Oppen00,
   Author = {Oppen, FV and Ullmo, D and Baranger, HU},
   Title = {Interaction-induced magnetization of a two-dimensional
             electron gas},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {62},
   Number = {3},
   Pages = {1935-1942},
   Year = {2000},
   ISSN = {0163-1829},
   Abstract = {We consider the contribution of electron-electron
             interactions to the orbital magnetization of a
             two-dimensional electron gas, focusing on the ballistic
             limit in the regime of negligible Landau-level spacing. This
             regime can be described by combining diagrammatic
             perturbation theory with semiclassical techniques. At
             sufficiently low temperatures, the interaction-induced
             magnetization overwhelms the Landau and Pauli contributions.
             Curiously, the interaction-induced magnetization is
             third-order in the (renormalized) Coulomb interaction. We
             give a simple interpretation of this effect in terms of
             classical paths using a renormalization argument: a polygon
             must have at least three sides in order to enclose an area.
             To leading order in the renormalized interaction, the
             renormalization argument gives exactly the same result as
             the full treatment. ©2000 The American Physical
             Society.},
   Key = {Oppen00}
}

@article{fds245092,
   Author = {Güçlü, AD and Ghosal, A and Umrigar, CJ and Baranger,
             HU},
   Title = {Interaction-induced strong localization in quantum
             dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {77},
   Number = {4},
   Pages = {041301(R)},
   Year = {2008},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/GucluGUB07_stronglocdots.pdf},
   Abstract = {We argue that Coulomb blockade phenomena are a useful probe
             of the crossover to strong correlation in quantum dots.
             Through calculations at low density using variational and
             diffusion quantum Monte Carlo (up to rs ∼55), we find that
             the addition energy shows a clear progression from features
             associated with shell structure to those caused by
             commensurability of a Wigner crystal. This crossover (which
             occurs near rs ∼20 for spin-polarized electrons) is, then,
             a signature of interaction-driven localization. As the
             addition energy is directly measurable in Coulomb blockade
             conductance experiments, this provides a direct probe of
             localization in the low density electron gas. © 2008 The
             American Physical Society.},
   Doi = {10.1103/PhysRevB.77.041301},
   Key = {fds245092}
}

@article{fds245108,
   Author = {Ullmo, D and Jiang, H and Yang, W and Baranger, HU},
   Title = {Interactions and broken time-reversal symmetry in chaotic
             quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {20},
   Pages = {201310(R)},
   Year = {2005},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/ullmojyb04_finiteb.pdf},
   Abstract = {When treating interactions in quantum dots within a
             random-phase- approximation (RPA)-like approach,
             time-reversal symmetry plays an important role as
             higher-order terms-the Cooper series-need to be included
             when this symmetry is present. Here we consider model
             quantum dots in a magnetic field weak enough to leave the
             dynamics of the dot chaotic, but strong enough to break
             time-reversal symmetry. The ground-state spin and addition
             energy for dots containing 120-200 electrons are found using
             local spin-density-functional theory, and we compare the
             corresponding distributions with those derived from an
             RPA-like treatment of the interactions. The agreement
             between the two approaches is very good, significantly
             better than for analogous calculations in the presence of
             time-reversal-symmetry. This demonstrates that the
             discrepancies between the two approaches in the
             time-reversal symmetric case indeed originate from the
             Cooper channel, indicating that these higher-order terms
             might not be properly taken into account in the
             spin-density-functional calculations. © 2005 The American
             Physical Society.},
   Doi = {10.1103/PhysRevB.71.201310},
   Key = {fds245108}
}

@booklet{Baranger00,
   Author = {Baranger, HU and Ullmo, D and Glazman, LI},
   Title = {Interactions and interference in quantum dots: Kinks in
             Coulomb-blockade peak positions},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {61},
   Number = {4},
   Pages = {R2425-R2428},
   Year = {2000},
   ISSN = {0163-1829},
   Abstract = {We investigate the spin of the ground state of a
             geometrically confined many-electron system. For atoms,
             shell structure simplifies this problem - the spin is
             prescribed by the well-known Hund's rule. In contrast,
             quantum dots provide a controllable setting for studying the
             interplay of quantum interference and electron-electron
             interactions in general cases. In a generic confining
             potential, the shell-structure argument suggests a singlet
             ground state for an even number of electrons. The
             interaction among the electrons produces, however,
             accidental occurrences of spin-triplet ground states, even
             for weak interaction, a limit which we analyze explicitly.
             Variation of an external parameter causes sudden switching
             between these states and hence a kink in the conductance.
             Experimental study of these kinks would yield the exchange
             energy for the "chaotic electron gas." ©2000 The American
             Physical Society.},
   Key = {Baranger00}
}

@booklet{Ullmo01,
   Author = {Ullmo, D and Baranger, HU},
   Title = {Interactions in chaotic nanoparticles: Fluctuations in
             Coulomb blockade peak spacings},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {64},
   Number = {24},
   Pages = {2453241-24532413},
   Year = {2001},
   ISSN = {0163-1829},
   url = {http://arxiv.org/abs/cond-mat/0103098v1},
   Abstract = {We use random matrix models and a Fermi-liquid approach to
             investigate the ground state energy of electrons confined to
             a nanoparticle. Our expression for the energy includes the
             charging effect, the single-particle energies, and the
             residual screened interactions treated in Hartree-Fock. This
             model is applicable to chaotic quantum dots or nanoparticles
             - in these systems the single-particle statistics follows
             random matrix theory at energy scales less than the Thouless
             energy. We find the distribution of Coulomb blockade peak
             spacings first for a large dot in which the residual
             interactions can be taken constant: the spacing fluctuations
             are of order the mean level separation Δ. Corrections to
             this limit are studied using the small parameter 1/kFL: both
             the residual interactions and the effect of the changing
             confinement on the single-particle levels produce
             fluctuations of order Δ/√kFL. The distributions we find
             are qualitatively similar to the experimental results. Thus,
             models beyond Fermi-liquid theory are not needed to describe
             this quantity.},
   Doi = {10.1103/PhysRevB.64.245324},
   Key = {Ullmo01}
}

@article{fds245086,
   Author = {Wurm, J and Wimmer, M and Adagideli, I and Richter, K and Baranger,
             HU},
   Title = {Interfaces within graphene nanoribbons},
   Journal = {New Journal of Physics},
   Volume = {11},
   Pages = {095022},
   Year = {2009},
   ISSN = {1367-2630},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/WurmWARB09_graphenenanoribbons.pdf},
   Abstract = {We study the conductance through two types of graphene
             nanostructures: nanoribbon junctions in which the width
             changes from wide to narrow, and curved nanoribbons. In the
             wide-narrow structures, substantial reflection occurs from
             the wide-narrow interface, in contrast to the behavior of
             the much studied electron gas waveguides. In the curved
             nanoribbons, the conductance is very sensitive to details
             such as whether regions of a semiconducting armchair
             nanoribbon are included in the curved structure-such regions
             strongly suppress the conductance. Surprisingly, this
             suppression is not due to the band gap of the semiconducting
             nanoribbon, but is linked to the valley degree of freedom.
             Although we study these effects in the simplest contexts,
             they can be expected to occur for more complicated
             structures, and we show results for rings as well. We
             conclude that experience from electron gas waveguides does
             not carry over to graphene nanostructures. The interior
             interfaces causing extra scattering result from the extra
             effective degrees of freedom of the graphene structure,
             namely the valley and sublattice pseudospins. © IOP
             Publishing Ltd and Deutsche Physikalische
             Gesellschaft.},
   Doi = {10.1088/1367-2630/11/9/095022},
   Key = {fds245086}
}

@booklet{Mello99,
   Author = {Mello, PA and Baranger, HU},
   Title = {Interference Phenomena in Electronic Transport Through
             Chaotic Cavities: An Information-Theoretic
             Approach},
   Volume = {9},
   Number = {2},
   Pages = {105 -- 146},
   Year = {1998},
   Month = {December},
   url = {http://arxiv.org/abs/cond-mat/9812225v1},
   Abstract = {We develop a statistical theory describing
             quantum-mechanical scattering of a particle by a cavity when
             the geometry is such that the classical dynamics is chaotic.
             This picture is relevant to a variety of systems, ranging
             from atomic nuclei to microwave cavities; the main
             application here is to electronic transport through
             ballistic microstructures. The theory describes the regime
             in which there are two distinct time scales, associated with
             a prompt and an equilibrated response, and is cast in terms
             of the matrix of scattering amplitudes S. The prompt
             response is related to the energy average of S which,
             through ergodicity, is expressed as the average over an
             ensemble of systems. We use an information-theoretic
             approach: the ensemble of S-matrices is determined by (1)
             general physical features-- symmetry, causality, and
             ergodicity, (2) the specific energy average of S, and (3)
             the notion of minimum information in the ensemble. This
             ensemble, known as Poisson's kernel, is meant to describe
             those situations in which any other information is
             irrelevant. Thus, one constructs the one-energy statistical
             distribution of S using only information expressible in
             terms of S itself without ever invoking the underlying
             Hamiltonian. This formulation has a remarkable predictive
             power: from the distribution of S we derive properties of
             the quantum conductance of cavities, including its average,
             its fluctuations, and its full distribution in certain
             cases, both in the absence and presence prompt response. We
             obtain good agreement with the results of the numerical
             solution of the Schrodinger equation for cavities in which
             either prompt response is absent or there are two widely
             separated time scales. Good agreement with experimental data
             is obtained once temperature smearing and dephasing effects
             are taken into account.},
   Doi = {10.1088/0959-7174/9/2/304},
   Key = {Mello99}
}

@booklet{Mello00,
   Author = {Mello, PA and Baranger, HU},
   Title = {Interference phenomena in electronic transport through
             chaotic cavities: an information-theoretic approach (vol 9,
             pg 105, 1999)},
   Journal = {Waves Random Media},
   Volume = {10},
   Number = {2},
   Pages = {337-337},
   Year = {2000},
   Month = {April},
   ISSN = {0959-7174},
   url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000086939200008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
   Doi = {10.1088/0959-7174/10/2/501},
   Key = {Mello00}
}

@article{Liu04_molecinter,
   Author = {Liu, R and Ke, S-H and Baranger, HU and Yang, W},
   Title = {Intermolecular effect in molecular electronics.},
   Journal = {Journal of Chemical Physics},
   Volume = {122},
   Number = {4},
   Pages = {44703},
   Year = {2005},
   Month = {January},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/15740279},
   Abstract = {We investigate the effects of lateral interactions on the
             conductance of two molecules connected in parallel to
             semi-infinite leads. The method we use combines a Green
             function approach to quantum transport with density
             functional theory for the electronic properties. The system,
             modeled after a self-assembled monolayer, consists of
             benzylmercaptane molecules sandwiched between gold
             electrodes. We find that the conductance increases when
             intermolecular interaction comes into play. The source of
             this increase is the indirect interaction through the gold
             substrate rather than direct molecule-molecule interaction.
             A striking resonance is produced only 0.3 eV above the Fermi
             energy.},
   Doi = {10.1063/1.1825377},
   Key = {Liu04_molecinter}
}

@article{fds245074,
   Author = {Ullmo, D and Burdin, S and Liu, DE and Baranger, HU},
   Title = {Kondo effect and mesoscopic fluctuations},
   Journal = {Pramana},
   Volume = {77},
   Number = {5},
   Pages = {769-779},
   Year = {2011},
   ISSN = {0304-4289},
   url = {http://dx.doi.org/10.1007/s12043-011-0191-3},
   Abstract = {Two important themes in nanoscale physics in the last two
             decades are correlations between electrons and mesoscopic
             fluctuations. Here we review our recent work on the
             intersection of these two themes. The setting is the Kondo
             effect, a paradigmatic example of correlated electron
             physics, in a nanoscale system with mesoscopic fluctuations;
             in particular, we consider a small quantum dot coupled to a
             finite reservoir (which itself may be a large quantum dot).
             We discuss three aspects of this problem. First, in the
             high-temperature regime, we argue that a Kondo temperature
             TK which takes into account the mesoscopic fluctuations is a
             relevant concept: for instance, physical properties are
             universal functions of T/TK. Secondly, when the temperature
             is much less than the mean level spacing due to confinement,
             we characterize a natural cross-over from weak to strong
             coupling. This strong coupling regime is itself
             characterized by well-defined single-particle levels, as one
             can see from a Nozières Fermi-liquid theory argument.
             Finally, using a mean-field technique, we connect the
             mesoscopic fluctuations of the quasiparticles in the weak
             coupling regime to those at strong coupling. © Indian
             Academy of Sciences.},
   Doi = {10.1007/s12043-011-0191-3},
   Key = {fds245074}
}

@article{Ullmo04_sdftstrutinsky,
   Author = {Ullmo, D and Jiang, H and Yang, W and Baranger, HU},
   Title = {Landau Fermi-liquid picture of spin density functional
             theory: Strutinsky approach to quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {70},
   Number = {20},
   Pages = {205309-1-205309-15},
   Year = {2004},
   ISSN = {0163-1829},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/ullmojyb04_dftstr.pdf},
   Abstract = {We analyze the ground-state energy and spin of quantum dots
             obtained from spin density functional theory (SDFT)
             calculations. First, we introduce a Strutinsky-type
             approximation, in which quantum interference is treated as a
             correction to a smooth Thomas-Fermi description. For large
             irregular dots, we find that the second-order Strutinsky
             expressions have an accuracy of about 5% of a mean level
             spacing compared to the full SDFT and capture all the
             qualitative features. Second, we perform a random
             matrix-theory/random-plane wave analysis of the Strutinsky
             SDFT expressions. The results are statistically similar to
             the SDFT quantum dot statistics. Finally, we note that the
             second-order Strutinsky approximation provides, in essence,
             a Landau Fermi-liquid picture of spin density functional
             theory. For instance, the leading term in the spin channel
             is simply the familiar exchange constant. A direct
             comparison between SDFT and the perturbation theory derived
             "universal Hamiltonian" is thus made possible.},
   Doi = {10.1103/PhysRevB.70.205309},
   Key = {Ullmo04_sdftstrutinsky}
}

@booklet{Hasen97,
   Author = {Hasen, J and Pfeiffer, LN and Pinczuk, A and Baranger, HU and West, KW and Dennis, BS},
   Title = {Large excitonic confinement in asymmetric quantum T
             wires},
   Journal = {Superlattices and Microstructures},
   Volume = {22},
   Number = {3},
   Pages = {X-364},
   Year = {1997},
   url = {http://dx.doi.org/10.1006/spmi.1996.0283},
   Abstract = {An asymmetric quantum T wire (QTWR) may be formed whenever
             two quantum wells (QW) of differing widths intersect. We
             measured the photoluminescence and photoluminescence
             excitation from such QTWRs using microscope optics with high
             spatial resolution. The introduction of an asymmetry in the
             design of the QWs allows us to compensate for the different
             effective masses of the heavy holes in the (100) and (110)
             directions. We find that the confinement energy for excitons
             in the asymmetric QTWR is 40 meV, which is greater than
             previously published reports on symmetric QTWRs.
             Consequently, the confinement energy exceeds kT at room
             temperature, which appeals to device applications.
             Furthermore, the confinement energy is greater than the LO
             phonon energy, a feature which may improve the capture rate
             of the QTWR and decrease the escape rate at higher
             temperatures. Finally, using the results from calculations,
             we estimate the binding energy of the exciton to be about 20
             meV, which is substantially larger than the binding energy
             in QWs. This result agrees with theoretical predictions of
             an increase in exciton binding energy in ID confinement. ©
             1997 Academic Press Limited.},
   Doi = {10.1006/spmi.1996.0283},
   Key = {Hasen97}
}

@article{fds245098,
   Author = {Herman, D and Ong, TT and Usaj, G and Mathur, H and Baranger,
             HU},
   Title = {Level spacings in random matrix theory and Coulomb blockade
             peaks in quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {76},
   Number = {19},
   Pages = {195448},
   Year = {2007},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/HermanOUMB07_rmtCB.pdf},
   Abstract = {We obtain analytic formulas for the spacing between
             conductance peaks in the Coulomb blockade regime based on
             the universal Hamiltonian model of quantum dots. Random
             matrix theory results are developed in order to treat
             correlations between two and three consecutive spacings in
             the energy level spectrum. These are generalizations of the
             Wigner surmise for the probability distribution of single
             level spacing. The analytic formulas are shown to be in good
             agreement with numerical evaluation. © 2007 The American
             Physical Society.},
   Doi = {10.1103/PhysRevB.76.195448},
   Key = {fds245098}
}

@article{Guclu08_inhomowire,
   Author = {Güçlü, AD and Umrigar, CJ and Jiang, H and Baranger,
             HU},
   Title = {Localization in an inhomogeneous quantum
             wire},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {80},
   Number = {20},
   Pages = {201302(R)},
   Year = {2009},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/GucluUJB08_inhomoqwire.pdf},
   Abstract = {We study interaction-induced localization of electrons in an
             inhomogeneous quasi-one-dimensional system-a wire with two
             regions, one at low density and the other high. Quantum
             Monte Carlo techniques are used to treat the strong Coulomb
             interactions in the low-density region, where localization
             of electrons occurs. The nature of the transition from high
             to low density depends on the density gradient-if it is
             steep, a barrier develops between the two regions, causing
             Coulomb blockade effects. Ferromagnetic spin polarization
             does not appear for any parameters studied. The picture
             emerging is in good agreement with measurements of tunneling
             between wires. © 2009 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.80.201302},
   Key = {Guclu08_inhomowire}
}

@article{fds245071,
   Author = {Liu, DE and Burdin, S and Baranger, HU and Ullmo,
             D},
   Title = {Mesoscopic Anderson box: Connecting weak to strong
             coupling},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {85},
   Number = {15},
   Pages = {155455},
   Year = {2012},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/LiuBBU12_mesoAndbox.pdf},
   Abstract = {We study the Anderson impurity problem in a mesoscopic
             setting, namely the "Anderson box," in which the impurity is
             coupled to finite reservoir having a discrete spectrum and
             large sample-to-sample mesoscopic fluctuations. Note that
             both the weakly coupled and strong coupling Anderson
             impurity problems are characterized by a Fermi-liquid theory
             with weakly interacting quasiparticles. We study how the
             statistical fluctuations in these two problems are
             connected, using random matrix theory and the slave boson
             mean-field approximation (SBMFA). First, for a resonant
             level model such as results from the SBMFA, we find the
             joint distribution of energy levels with and without the
             resonant level present. Second, if only energy levels within
             the Kondo resonance are considered, the distributions of
             perturbed levels collapse to universal forms for both
             orthogonal and unitary ensembles for all values of the
             coupling. These universal curves are described well by a
             simple Wigner-surmise-type toy model. Third, we study the
             fluctuations of the mean-field parameters in the SBMFA,
             finding that they are small. Finally, the change in the
             intensity of an eigenfunction at an arbitrary point is
             studied, such as is relevant in conductance measurements. We
             find that the introduction of the strongly coupled impurity
             considerably changes the wave function but that a
             substantial correlation remains. © 2012 American Physical
             Society.},
   Doi = {10.1103/PhysRevB.85.155455},
   Key = {fds245071}
}

@article{fds303607,
   Author = {Kaul, RK and Ullmo, D and Baranger, HU},
   Title = {Mesoscopic Fluctuations in Quantum Dots in the Kondo
             Regime},
   Journal = {Phys. Rev. B},
   Volume = {68},
   Number = {16},
   Pages = {161305},
   Year = {2003},
   Month = {June},
   url = {http://arxiv.org/abs/cond-mat/0306074v2},
   Abstract = {Properties of the Kondo effect in quantum dots depend
             sensitively on the coupling parameters and so on the
             realization of the quantum dot -- the Kondo temperature
             itself becomes a mesoscopic quantity. Assuming chaotic
             dynamics in the dot, we use random matrix theory to
             calculate the distribution of both the Kondo temperature and
             the conductance in the Coulomb blockade regime. We study two
             experimentally relevant cases: leads with single channels
             and leads with many channels. In the single-channel case,
             the distribution of the conductance is very wide as $T_K$
             fluctuates on a logarithmic scale. As the number of channels
             increases, there is a slow crossover to a self-averaging
             regime.},
   Doi = {10.1103/PhysRevB.68.161305},
   Key = {fds303607}
}

@booklet{Kaul03,
   Author = {Kaul, RK and Ullmo, D and Baranger, HU},
   Title = {Mesoscopic fluctuations in quantum dots in the Kondo
             regime},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {68},
   Number = {16},
   Pages = {1613051-1613054},
   Year = {2003},
   ISSN = {0163-1829},
   Abstract = {Properties of the Kondo effect in quantum dots depend
             sensitively on the coupling parameters and so on the
             realization of the quantum dot-the Kondo temperature itself
             becomes a mesoscopic quantity. Assuming chaotic dynamics in
             the dot, we use random matrix theory to calculate the
             distribution of both the Kondo temperature and the
             conductance in the Coulomb blockade regime. We study two
             experimentally relevant cases: leads with single channels
             and leads with many channels. In the single-channel case,
             the distribution of the conductance is very wide as TK
             fluctuates on a logarithmic scale. As the number of channels
             increases, there is a slow crossover to a self-averaging
             regime.},
   Key = {Kaul03}
}

@article{fds318400,
   Author = {Kaul, RK and Ullmo, D and Baranger, HU},
   Title = {Mesoscopic fluctuations in quantum dots in the Kondo regime
             (vol 68, art no 161305, 2003)},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {69},
   Number = {8},
   Year = {2004},
   Month = {February},
   url = {http://dx.doi.org/10.1103/PhysRevB.69.089902},
   Doi = {10.1103/PhysRevB.69.089902},
   Key = {fds318400}
}

@article{fds245045,
   Author = {Ullmo, D and Liu, DE and Burdin, S and Baranger, HU},
   Title = {Mesoscopic fluctuations in the Fermi-liquid regime of the
             Kondo problem},
   Journal = {The European Physical Journal B - Condensed Matter and
             Complex Systems},
   Volume = {86},
   Number = {8},
   Year = {2013},
   ISSN = {1434-6028},
   url = {http://dx.doi.org/10.1140/epjb/e2013-40418-3},
   Abstract = {We consider the low temperature regime of the mesoscopic
             Kondo problem, and in particular the relevance of a
             Fermi-liquid description of this regime. Mesoscopic
             fluctuations of both the quasiparticle energy levels and the
             corresponding wavefunctions are large in this case. These
             mesoscopic fluctuations make the traditional approach to
             Fermi-liquids impracticable, as it assumes the existence of
             a limited number of relevant parameters. We show here how
             this difficulty can be overcome and discuss the relationship
             between the resulting Fermi-liquid description "à la
             Nozières" and the mean field slave fermion approximation.
             © 2013 EDP Sciences, SIF, Springer-Verlag Berlin
             Heidelberg.},
   Doi = {10.1140/epjb/e2013-40418-3},
   Key = {fds245045}
}

@article{fds245115,
   Author = {Kaul, RK and Ullmo, D and Chandrasekharan, S and Baranger,
             HU},
   Title = {Mesoscopic Kondo problem},
   Journal = {Europhysics Letters},
   Volume = {71},
   Number = {6},
   Pages = {973-979},
   Publisher = {cond-mat/0409211},
   Year = {2005},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/kaulucb04_mesokondo.pdf},
   Abstract = {We study the effect of mesoscopic fluctuations on a magnetic
             impurity coupled to a spatially confined electron gas with a
             temperature in the mesoscopic range (i.e. between the mean
             level spacing Δ and the Thouless energy ETh). Comparing
             "poor-man's scaling" with exact Quantum Monte Carlo, we find
             that for temperatures larger than the Kondo temperature,
             many aspects of the fluctuations can be captured by the
             perturbative technique. Using this technique in conjunction
             with semi-classical approximations, we are able to calculate
             the mesoscopic fluctuations for a wide variety of systems.
             For temperatures smaller than the Kondo temperature, we find
             large fluctuations and deviations from the universal
             behavior. © EDP Sciences.},
   Doi = {10.1209/epl/i2005-10184-1},
   Key = {fds245115}
}

@article{baranger:142,
   Author = {Baranger, HU and Mello, PA},
   Title = {Mesoscopic transport through chaotic cavities: A random
             S-matrix theory approach.},
   Journal = {Physical Review Letters},
   Volume = {73},
   Number = {1},
   Pages = {142-145},
   Publisher = {APS},
   Year = {1994},
   Month = {July},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10056740},
   Keywords = {S MATRIX; TRANSPORT THEORY; MICROSTRUCTURE; NANOSTRUCTURES;
             CHAOTIC SYSTEMS; SCATTERING THEORY; INTERFERENCE;
             FLUCTUATIONS; MAGNETIC FIELD EFFECTS},
   Doi = {10.1103/PhysRevLett.73.142},
   Key = {baranger:142}
}

@booklet{Usaj01a,
   Author = {Usaj, G and Baranger, HU},
   Title = {Mesoscopic tunneling magnetoresistance},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {63},
   Number = {18},
   Pages = {1844181-1844185},
   Year = {2001},
   ISSN = {0163-1829},
   url = {http://arxiv.org/abs/cond-mat/0006429v3},
   Abstract = {We study spin-dependent transport through
             ferromagnet/normal-metal/ferromagnet double tunnel junctions
             in the mesoscopic Coulomb-blockade regime. We calculate the
             conductance in the absence or presence of spin-orbit
             interaction and for arbitrary orientation of the lead
             magnetizations. The tunneling magnetoresistance (TMR),
             defined at the Coulomb-blockade conductance peaks, is
             calculated and its probability distribution presented. We
             show that mesoscopic fluctuations can lead to the optimal
             value of the TMR and that the conductance in noncollinear
             configurations gives information about how the spin rotates
             inside the grain.},
   Doi = {10.1103/PhysRevB.63.184418},
   Key = {Usaj01a}
}

@article{fds245113,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Models of electrodes and contacts in molecular
             electronics.},
   Journal = {Journal of Chemical Physics},
   Volume = {123},
   Number = {11},
   Pages = {114701},
   Publisher = {cond-mat/0504089},
   Year = {2005},
   Month = {September},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/16392577},
   Abstract = {Bridging the difference in atomic structure between
             experiments and theoretical calculations and exploring
             quantum confinement effects in thin electrodes (leads) are
             both important issues in molecular electronics. To address
             these issues, we report here, by using Au-benzenedithiol-Au
             as a model system, systematic investigations of different
             models for the leads and the lead-molecule contacts: leads
             with different cross sections, leads consisting of infinite
             surfaces, and surface leads with a local nanowire or atomic
             chain of different lengths. The method adopted is a
             nonequilibrium Green's-function approach combined with
             density-functional theory calculations for the electronic
             structure and transport, in which the leads and molecule are
             treated on the same footing. It is shown that leads with a
             small cross section will lead to large oscillations in the
             transmission function T(E), which depend significantly on
             the lead structure (orientation) because of quantum
             waveguide effects. This oscillation slowly decays as the
             lead width increases, with the average approaching the limit
             given by infinite surface leads. Local nanowire structures
             around the contacts induce moderate fluctuations in T(E),
             while a Au atomic chain (including a single Au apex atom) at
             each contact leads to a significant conductance
             resonance.},
   Key = {fds245113}
}

@article{Ke04_molectrans2,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Molecular conductance: chemical trends of anchoring
             groups.},
   Journal = {Journal of the American Chemical Society},
   Volume = {126},
   Number = {48},
   Pages = {15897-15904},
   Year = {2004},
   Month = {December},
   ISSN = {0002-7863},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/15571415},
   Abstract = {Combining density functional theory calculations for
             molecular electronic structure with a Green function method
             for electron transport, we calculate from first principles
             the molecular conductance of benzene connected to two Au
             leads through different anchoring atoms-S, Se, and Te. The
             relaxed atomic structure of the contact, different lead
             orientations, and different adsorption sites are fully
             considered. We find that the molecule-lead coupling,
             electron transfer, and conductance all depend strongly on
             the adsorption site, lead orientation, and local contact
             atomic configuration. For flat contacts the conductance
             decreases as the atomic number of the anchoring atom
             increases, regardless of the adsorption site, lead
             orientation, or bias. For small bias this chemical trend is,
             however, dependent on the contact atomic configuration: an
             additional Au atom at the contact with the (111) lead
             changes the best anchoring atom from S to Se, although for
             large bias the original chemical trend is
             recovered.},
   Doi = {10.1021/ja047367e},
   Key = {Ke04_molectrans2}
}

@article{Yoo04_multilev,
   Author = {Yoo, J and Chandrasekharan, S and Baranger, HU},
   Title = {Multilevel algorithm for quantum-impurity
             models.},
   Journal = {Physical Review E - Statistical, Nonlinear, and Soft Matter
             Physics},
   Volume = {71},
   Number = {3 Pt 2B},
   Pages = {036708},
   Publisher = {cond-mat/0408123},
   Year = {2005},
   Month = {March},
   ISSN = {1539-3755},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/15903634},
   Abstract = {A continuous-time path integral quantum Monte Carlo method
             using the directed-loop algorithm is developed to simulate
             the Anderson single-impurity model in the occupation number
             basis. Although the method suffers from a sign problem at
             low temperatures, the new algorithm has many advantages over
             conventional algorithms. For example, the model can be
             easily simulated in the Kondo limit without time
             discretization errors. Furthermore, many observables
             including the impurity susceptibility and a variety of
             fermionic observables can be calculated efficiently. Finally
             the new approach allows us to explore a general technique,
             called the multilevel algorithm, to solve the sign problem.
             We find that the multilevel algorithm is able to generate an
             exponentially large number of configurations with an effort
             that grows as a polynomial in inverse temperature such that
             configurations with a positive sign dominate over those with
             negative signs. Our algorithm can be easily generalized to
             other multi-impurity problems.},
   Doi = {10.1103/PhysRevE.71.036708},
   Key = {Yoo04_multilev}
}

@article{fds328611,
   Author = {Fang, Y-LL and Baranger, HU},
   Title = {Multiple emitters in a waveguide: Nonreciprocity and
             correlated photons at perfect elastic transmission},
   Journal = {Physical Review A},
   Volume = {96},
   Number = {1},
   Year = {2017},
   Month = {July},
   url = {http://dx.doi.org/10.1103/PhysRevA.96.013842},
   Doi = {10.1103/PhysRevA.96.013842},
   Key = {fds328611}
}

@article{baranger:11479,
   Author = {Baranger, HU},
   Title = {Multiprobe electron waveguides: Filtering and bend
             resistances.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {42},
   Number = {18},
   Pages = {11479-11495},
   Publisher = {APS},
   Year = {1990},
   Month = {December},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9995452},
   Keywords = {WAVEGUIDES; QUANTUM ELECTRONICS; SUPERCONDUCTING WIRES;
             ELECTRIC CONDUCTIVITY; LOW TEMPERATURE; HETEROJUNCTIONS;
             CHARGED – PARTICLE TRANSPORT; ELECTRONS},
   Key = {baranger:11479}
}

@article{Ke05_nanotubemetal,
   Author = {Ke, S-H and Yang, W and Baranger, HU},
   Title = {Nanotube-metal junctions: 2- and 3-terminal electrical
             transport.},
   Journal = {Journal of Chemical Physics},
   Volume = {124},
   Number = {18},
   Pages = {181102},
   Year = {2006},
   Month = {May},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/16709090},
   Abstract = {We address the quality of electrical contact between carbon
             nanotubes and metallic electrodes by performing
             first-principles calculations for the electron transmission
             through ideal 2- and 3-terminal junctions, thus revealing
             the physical limit of tube-metal conduction. The structural
             model constructed involves surrounding the tube by the metal
             atoms of the electrode as in most experiments; we consider
             metallic (5,5) and n-doped semiconducting (10,0) tubes
             surrounded by Au or Pd. In the case of metallic tubes, the
             contact conductance is shown to approach the ideal 4e2/h in
             the limit of large contact area. For three-terminals, the
             division of flux among the different transmission channels
             depends strongly on the metal material. A Pd electrode has
             nearly perfect tube-electrode transmission and therefore
             turns off the straight transport along the tube. Our results
             are in good agreement with some recent experimental reports
             and clarify a fundamental discrepancy between theory and
             experiment.},
   Doi = {10.1063/1.2200356},
   Key = {Ke05_nanotubemetal}
}

@article{fds245119,
   Author = {Getty, SA and Engtrakul, C and Wang, L and Liu, R and Ke, S-H and Baranger,
             HU and Yang, W and Fuhrer, MS and Sita, LR},
   Title = {Near-perfect conduction through a ferrocene-based molecular
             wire},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {24},
   Pages = {241401(R)},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/GettyEWLKBYMS05_ferrocene.pdf},
   Abstract = {Here we describe the design, single-molecule transport
             measurements, and theoretical modeling of a ferrocene-based
             organometallic molecular wire, whose bias-dependent
             conductance shows a clear Lorentzian form with magnitude
             exceeding 70% of the conductance quantum G0. We attribute
             this unprecedented level of single-molecule conductance to a
             manifestation of the low-lying molecular resonance and
             extended orbital network long predicted for a conjugated
             organic system. A similar-in-length, all-organic conjugated
             phenylethynyl oligomer molecular framework shows much lower
             conductance. © 2005 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.71.241401},
   Key = {fds245119}
}

@article{Liu05_CoNDR,
   Author = {Liu, R and Ke, S-H and Baranger, HU and Yang, W},
   Title = {Negative differential resistance and hysteresis through an
             organometallic molecule from molecular-level
             crossing.},
   Journal = {Journal of the American Chemical Society},
   Volume = {128},
   Number = {19},
   Pages = {6274-6275},
   Year = {2006},
   Month = {May},
   ISSN = {0002-7863},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/16683765},
   Abstract = {Analogous to a quantum double-dot system, diblock structured
             molecules could also show negative differential resistance
             (NDR). Using combined density functional theory and
             nonequilibrium Green function technique, we show that
             molecular-level crossing in a molecular double-dot system
             containing cobaltocene and ferrocene leads to NDR and
             hysteresis.},
   Doi = {10.1021/ja057054z},
   Key = {Liu05_CoNDR}
}

@booklet{Chang96,
   Author = {A. M. Chang and H. U. Baranger and L. N. Pfeiffer and K. W. West and T. Y. Chang},
   Title = {Non-Gaussian distribution of Coulomb blockade peak heights
             in quantum dots},
   Journal = {Phys. Rev. Lett.},
   Volume = {76},
   Number = {10},
   Pages = {1695 -- 1698},
   Year = {1996},
   Month = {March},
   Key = {Chang96}
}

@article{chang:1695,
   Author = {Chang, AM and Baranger, HU and Pfeiffer, LN and West, KW and Chang,
             TY},
   Title = {Non-Gaussian distribution of Coulomb blockade peak heights
             in quantum dots.},
   Journal = {Physical Review Letters},
   Volume = {76},
   Number = {10},
   Pages = {1695-1698},
   Publisher = {APS},
   Year = {1996},
   Month = {March},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10060494},
   Keywords = {QUANTUM DOTS; TUNNELING; IV CHARACTERISTIC; COULOMB FIELD;
             GALLIUM ARSENIDES; ALUMINIUM ARSENIDES},
   Doi = {10.1103/PhysRevLett.76.1695},
   Key = {chang:1695}
}

@article{fds303602,
   Author = {Mebrahtu, HT and Borzenets, IV and Zheng, H and Bomze, YV and Smirnov,
             AI and Florens, S and Baranger, HU and Finkelstein,
             G},
   Title = {Observation of Majorana Quantum Critical Behavior in a
             Resonant Level Coupled to a Dissipative Environment},
   Journal = {Nature Physics},
   Volume = {9},
   Pages = {732},
   Year = {2012},
   Month = {December},
   url = {http://arxiv.org/abs/1212.3857v1},
   Abstract = {We investigate experimentally an exotic state of electronic
             matter obtained by fine-tuning to a quantum critical point
             (QCP), realized in a spin-polarized resonant level coupled
             to strongly dissipative electrodes. Several transport
             scaling laws near and far from equilibrium are measured, and
             then accounted for theoretically. Our analysis reveals a
             splitting of the resonant level into two quasi-independent
             Majorana modes, one strongly hybridized to the leads, and
             the other tightly bound to the quantum dot. Residual
             interactions involving these Majorana fermions result in the
             observation of a striking quasi-linear non-Fermi liquid
             scattering rate at the QCP. Our devices constitute a viable
             alternative to topological superconductors as a platform for
             studying strong correlation effects within Majorana
             physics.},
   Doi = {10.1038/nphys2735},
   Key = {fds303602}
}

@article{fds245044,
   Author = {Mebrahtu, HT and Borzenets, IV and Zheng, H and Bomze, YV and Smirnov,
             AI and Florens, S and Baranger, HU and Finkelstein,
             G},
   Title = {Observation of majorana quantum critical behaviour in a
             resonant level coupled to a dissipative environment},
   Journal = {Nature Physics},
   Volume = {9},
   Number = {11},
   Pages = {732-737},
   Year = {2013},
   Month = {November},
   ISSN = {1745-2473},
   url = {http://dx.doi.org/10.1038/nphys2735},
   Abstract = {A quantum phase transition is an abrupt change between two
             distinct ground states of a many-body system, driven by an
             external parameter. In the vicinity of the quantum critical
             point (QCP) where the transition occurs, a new phase may
             emerge that is determined by quantum fluctuations and is
             very different from either phase. In particular, a
             conducting system may exhibit non-Fermi-liquid behaviour.
             Although this scenario is well established theoretically,
             controllable experimental realizations are rare. Here, we
             experimentally investigate the nature of the QCP in a simple
             nanoscale system - a spin-polarized resonant level coupled
             to dissipative contacts. We fine-tune the system to the QCP,
             realized exactly on-resonance and when the coupling between
             the level and the two contacts is symmetric. Several
             anomalous transport scaling laws are demonstrated, including
             a striking non-Fermi-liquid scattering rate at the QCP,
             indicating fractionalization of the resonant level into two
             Majorana quasiparticles. © 2013 Macmillan Publishers
             Limited.},
   Doi = {10.1038/nphys2735},
   Key = {fds245044}
}

@booklet{Goni92,
   Author = {Goñi, AR and Pfeiffer, LN and West, KW and Pinczuk, A and Baranger, HU and Stormer, HL},
   Title = {Observation of quantum wire formation at intersecting
             quantum wells},
   Journal = {Applied Physics Letters},
   Volume = {61},
   Number = {16},
   Pages = {1956-1958},
   Year = {1992},
   ISSN = {0003-6951},
   url = {http://dx.doi.org/10.1063/1.108375},
   Abstract = {We report the first observation of a quantum bound state
             formed at the junction of two intersecting quantum wells in
             the shape of a T. The atomically precise T junctions are
             fabricated by a novel cleaved edge overgrowth process in the
             AlGaAs/GaAs system. The identification of bound states with
             energies in excess of 20 meV is made by optical emission and
             absorption spectroscopy. Such quantum wire states are caused
             by the unique confinement of the lowest state wave function
             to the region of the T junction.},
   Doi = {10.1063/1.108375},
   Key = {Goni92}
}

@article{fds245112,
   Author = {Yoo, J and Chandrasekharan, S and Kaul, RK and Ullmo, D and Baranger,
             HU},
   Title = {On the sign problem in the Hirsch-Fye algorithm for impurity
             problems},
   Journal = {Journal of Physics A: Mathematical and General},
   Volume = {38},
   Number = {48},
   Pages = {10307-10310},
   Publisher = {cond-mat/0412771},
   Year = {2005},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/YooCKUB05_noHFsign.pdf},
   Abstract = {We show that there is no fermion sign problem in the Hirsch
             and Fye algorithm for the single-impurity Anderson model.
             Beyond the particle-hole symmetric case for which a simple
             proof exists, this has been known only empirically. Here we
             prove the nonexistence of a sign problem for the general
             case by showing that each spin trace for a given Ising
             configuration is separately positive. We further use this
             insight to analyse under what conditions orbitally
             degenerate Anderson models or the two-impurity Anderson
             model develop a sign. © 2005 IOP Publishing
             Ltd.},
   Doi = {10.1088/0305-4470/38/48/004},
   Key = {fds245112}
}

@booklet{Behringer89,
   Author = {BEHRINGER, RE and MANKIEWICH, PM and TIMP, G and HOWARD, RE and BARANGER, HU and CUNNINGHAM, J and SAMPERE, S},
   Title = {ONE-DIMENSIONAL BALLISTIC TRANSPORT IN ALGAAS/GAAS ELECTRON
             WAVEGUIDES},
   Journal = {Journal of vacuum science & technology. B, Microelectronics
             and nanometer structures : processing, measurement, and
             phenomena : an official journal of the American Vacuum
             Society},
   Volume = {7},
   Number = {6},
   Pages = {2039-2043},
   Publisher = {AVS},
   Year = {1989},
   ISSN = {1071-1023},
   url = {http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1989CG91400147&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=47d3190e77e5a3a53558812f597b0b92},
   Doi = {10.1116/1.584644},
   Key = {Behringer89}
}

@article{fds225583,
   Author = {Y.-L. L. Fang and H. Zheng and H. U. Baranger},
   Title = {One-Dimensional Waveguide Coupled to Multiple Qubits:
             Photon-Photon Correlations},
   Journal = {Eur. Phys. J. Quantum Technology},
   Volume = {1},
   Pages = {3},
   Year = {2014},
   Month = {January},
   url = {http://arxiv.org/pdf/1308.6551v2.pdf},
   Doi = {10.1140/epjqt3},
   Key = {fds225583}
}

@article{Liu05_CoRectifier,
   Author = {Liu, R and Ke, S-H and Yang, W and Baranger, HU},
   Title = {Organometallic molecular rectification.},
   Journal = {Journal of Chemical Physics},
   Volume = {124},
   Number = {2},
   Pages = {024718},
   Year = {2006},
   Month = {January},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/16422637},
   Abstract = {We study the rectification of current through a single
             molecule with an intrinsic spatial asymmetry. The molecule
             contains a cobaltocene moiety in order to take advantage of
             its relatively localized and high-energy d states. A
             rectifier with large voltage range, high current, and low
             threshold can be realized. The evolution of molecular
             orbitals under both forward and reverse biases is captured
             in a self-consistent nonequilibrium Green function plus
             density functional theory description. Our calculations
             demonstrate the plausibility of making excellent molecular
             diodes by using metallocenes, pointing to a fruitful class
             of molecules.},
   Doi = {10.1063/1.2141955},
   Key = {Liu05_CoRectifier}
}

@article{fds245121,
   Author = {Liu, R and Ke, S-H and Baranger, HU and Yang, W},
   Title = {Organometallic spintronics: dicobaltocene
             switch.},
   Journal = {Nano Letters},
   Volume = {5},
   Number = {10},
   Pages = {1959-1962},
   Year = {2005},
   Month = {October},
   ISSN = {1530-6984},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/16218717},
   Abstract = {A single-molecule spintronic switch and spin valve using two
             cobaltocene moieties is proposed. Spin-dependent transport
             through a lead-molecule-lead junction has been calculated
             using first-principles density functional and nonequilibrium
             Green function methods. We find that the antiparallel
             (singlet) configuration of the cobaltocene spins blocks
             electron transport near the Fermi energy, while the spin
             parallel (triplet) configuration enables much higher
             current. The energy difierence between the antiparallel and
             parallel states depends on the insulating spacer separating
             the two cobaltocenes, allowing switching through the
             application of a moderate magnetic field.},
   Doi = {10.1021/nl0513380},
   Key = {fds245121}
}

@article{fds303604,
   Author = {Zheng, H and Baranger, HU},
   Title = {Persistent Quantum Beats and Long-Distance Entanglement from
             Waveguide-Mediated Interactions},
   Journal = {Phys. Rev. Lett.},
   Volume = {110},
   Pages = {113601},
   Year = {2012},
   Month = {June},
   url = {http://arxiv.org/abs/1206.4442v2},
   Abstract = {We study photon-photon correlations and entanglement
             generation in a one-dimensional waveguide coupled to two
             qubits with an arbitrary spatial separation. We develop a
             novel Green function method to study vacuum-mediated
             qubit-qubit interactions, including both spontaneous and
             coherent couplings. As a result of these interactions,
             quantum beats appear in the second-order correlation
             function. We go beyond the Markovian regime and observe that
             such quantum beats persist much longer than the qubit life
             time. Using these non-Markovian processes, a high degree of
             long-distance entanglement can be generated, making
             waveguide-QED systems promising candidates for scalable
             quantum networking.},
   Doi = {10.1103/PhysRevLett.110.113601},
   Key = {fds303604}
}

@article{fds221117,
   Author = {H. Zheng and H. U. Baranger},
   Title = {Persistent Quantum Beats and Long-Distance Entanglement from
             Non-Markovian Processes},
   Journal = {Phys. Rev. Lett.},
   Volume = {110},
   Pages = {113601},
   Year = {2013},
   Month = {March},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/ZhengB12_twoimp.pdf},
   Doi = {10.1103/PhysRevLett.110.113601},
   Key = {fds221117}
}

@article{fds245063,
   Author = {Mucciolo, ER and Vorojtsov, S and Baranger, HU},
   Title = {Phonon decoherence in quantum dot qubits},
   Journal = {Proceedings of SPIE - The International Society for Optical
             Engineering},
   Volume = {5815},
   Pages = {53-61},
   Year = {2005},
   ISSN = {0277-786X},
   url = {http://dx.doi.org/10.1117/12.603649},
   Abstract = {The spin of an electron confined into a lateral
             semiconductor quantum dot has been proposed as a possible
             physical realization of a qubit. While the spin has the
             advantage of large decoherence times, operations with more
             than one qubit will necessarily involve orbital degrees of
             freedom, namely, charge, which is much more prone to
             decoherence. There are also alternative quantum dot qubit
             proposals that are entirely based on charge. We have used a
             realistic model to quantify the limitations imposed by
             acoustic phonons on the operation of quantum dot-based
             qubits. Our treatment includes essential aspects of the
             setup geometry, wave function profile and materials
             characteristics. The time dependence of the qubit density
             matrix is the presence of a phonon bath solved within the
             Born-Markov approximation. We find that the inclusion of
             geometric form factors makes the phonon-induced decoherence
             rates in double dot charge qubits nearly one order of
             magnitude lower than estimates previously in the literature.
             Moreover, our theoretical prediction for the quality factor
             of coherent charge oscillations based on phonon decoherence
             are higher than the values recently observed experimentally.
             This allows us to conclude that phonons are not the primary
             source of decoherence in double quantum dot
             qubits.},
   Doi = {10.1117/12.603649},
   Key = {fds245063}
}

@article{fds245120,
   Author = {Vorojtsov, S and Mucciolo, ER and Baranger, HU},
   Title = {Phonon decoherence of a double quantum dot charge
             qubit},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {20},
   Pages = {205322},
   Year = {2005},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/vorojtsovmb04_ddot.pdf},
   Abstract = {We study decoherence of a quantum dot charge qubit due to
             coupling to piezoelectric acoustic phonons in the
             Born-Markov approximation. After including appropriate form
             factors, we find that phonon decoherence rates are one to
             two orders of magnitude weaker than was previously
             predicted. We calculate the dependence of the Q factor on
             lattice temperature, quantum dot size, and interdot
             coupling. Our results suggest that mechanisms other than
             phonon decoherence play a more significant role in current
             experimental setups. © 2005 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.71.205322},
   Key = {fds245120}
}

@article{fds318396,
   Author = {Fang, Y-LL and Baranger, HU},
   Title = {Photon correlations generated by inelastic scattering in a
             one-dimensional waveguide coupled to three-level
             systems},
   Journal = {Physica E: Low-dimensional Systems and Nanostructures},
   Volume = {78},
   Pages = {92-99},
   Year = {2016},
   Month = {April},
   url = {http://dx.doi.org/10.1016/j.physe.2015.11.004},
   Doi = {10.1016/j.physe.2015.11.004},
   Key = {fds318396}
}

@article{timp:2081,
   Author = {Timp, G and Baranger, HU and deVegvar, P and Cunningham, JE and Howard,
             RE and Behringer, R and Mankiewich, PM},
   Title = {Propagation around a bend in a multichannel electron
             waveguide.},
   Journal = {Physical Review Letters},
   Volume = {60},
   Number = {20},
   Pages = {2081-2084},
   Publisher = {APS},
   Year = {1988},
   Month = {May},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10038252},
   Keywords = {MAGNETORESISTANCE; WIRES; FABRICATION; GALLIUM ARSENIDES;
             ALUMINIUM ARSENIDES; HETEROSTRUCTURES; SIMULATION; NUMERICAL
             ANALYSIS; ONE – DIMENSIONAL SYSTEMS},
   Doi = {10.1103/PhysRevLett.60.2081},
   Key = {timp:2081}
}

@article{fds245116,
   Author = {Lee, J-W and Chandrasekharan, S and Baranger, HU},
   Title = {Quantum Monte Carlo study of disordered fermions},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {72},
   Number = {2},
   Pages = {024525},
   Publisher = {cond-mat/0411306},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/leecb04_disordfermion.pdf},
   Abstract = {We study a strongly correlated fermionic model with
             attractive interactions in the presence of disorder in two
             spatial dimensions. Our model has been designed so that it
             can be solved using the recently discovered meron-cluster
             approach. Although the model is unconventional it has the
             same symmetries as the Hubbard model. Since the naive
             algorithm is inefficient, we develop an algorithm by
             combining the meron-cluster technique with the directed-loop
             update. This combination allows us to compute the pair
             susceptibility and the winding number susceptibility
             accurately. We find that the s -wave superconductivity,
             present in the clean model, does not disappear until the
             disorder reaches a temperature dependent critical strength.
             The critical behavior as a function of disorder close to the
             phase transition belongs to the Berezinky-Kosterlitz-Thouless
             universality class as expected. The fermionic degrees of
             freedom, although present, do not appear to play an
             important role near the phase transition. © 2005 The
             American Physical Society.},
   Doi = {10.1103/PhysRevB.72.024525},
   Key = {fds245116}
}

@article{Dong10_4dotsqpt,
   Author = {Liu, DE and Chandrasekharan, S and Baranger, HU},
   Title = {Quantum phase transition and emergent symmetry in a
             quadruple quantum dot system.},
   Journal = {Physical Review Letters},
   Volume = {105},
   Number = {25},
   Pages = {256801},
   Year = {2010},
   Month = {December},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/21231607},
   Abstract = {We propose a system of four quantum dots designed to study
             the competition between three types of interactions:
             Heisenberg, Kondo, and Ising. We find a rich phase diagram
             containing two sharp features: a quantum phase transition
             (QPT) between charge-ordered and charge-liquid phases and a
             dramatic resonance in the charge liquid visible in the
             conductance. The QPT is of the Kosterlitz-Thouless type with
             a discontinuous jump in the conductance at the transition.
             We connect the resonance phenomenon with the degeneracy of
             three levels in the isolated quadruple dot and argue that
             this leads to a Kondo-like emergent symmetry from left-right
             Z2 to U(1).},
   Doi = {10.1103/PhysRevLett.105.256801},
   Key = {Dong10_4dotsqpt}
}

@article{Henok11_RLdissip1,
   Author = {Mebrahtu, HT and Borzenets, IV and Liu, DE and Zheng, H and Bomze, YV and Smirnov, AI and Baranger, HU and Finkelstein, G},
   Title = {Quantum phase transition in a resonant level coupled to
             interacting leads.},
   Journal = {Nature},
   Volume = {488},
   Number = {7409},
   Pages = {61-64},
   Year = {2012},
   Month = {August},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/22859201},
   Abstract = {A Luttinger liquid is an interacting one-dimensional
             electronic system, quite distinct from the 'conventional'
             Fermi liquids formed by interacting electrons in two and
             three dimensions. Some of the most striking properties of
             Luttinger liquids are revealed in the process of electron
             tunnelling. For example, as a function of the applied bias
             voltage or temperature, the tunnelling current exhibits a
             non-trivial power-law suppression. (There is no such
             suppression in a conventional Fermi liquid.) Here, using a
             carbon nanotube connected to resistive leads, we create a
             system that emulates tunnelling in a Luttinger liquid, by
             controlling the interaction of the tunnelling electron with
             its environment. We further replace a single tunnelling
             barrier with a double-barrier, resonant-level structure and
             investigate resonant tunnelling between Luttinger liquids.
             At low temperatures, we observe perfect transparency of the
             resonant level embedded in the interacting environment, and
             the width of the resonance tends to zero. We argue that this
             behaviour results from many-body physics of interacting
             electrons, and signals the presence of a quantum phase
             transition. Given that many parameters, including the
             interaction strength, can be precisely controlled in our
             samples, this is an attractive model system for studying
             quantum critical phenomena in general, with wide-reaching
             implications for understanding quantum phase transitions in
             more complex systems, such as cold atoms and strongly
             correlated bulk materials.},
   Doi = {10.1038/nature11265},
   Key = {Henok11_RLdissip1}
}

@article{Priyadarshee06_hcbosons1,
   Author = {Priyadarshee, A and Chandrasekharan, S and Lee, J-W and Baranger,
             HU},
   Title = {Quantum phase transitions of hard-core bosons in background
             potentials.},
   Journal = {Physical Review Letters},
   Volume = {97},
   Number = {11},
   Pages = {115703},
   Year = {2006},
   Month = {September},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/17025902},
   Abstract = {We study the zero temperature phase diagram of hard-core
             bosons in two dimensions subjected to three types of
             background potentials: staggered, uniform, and random. In
             all three cases there is a quantum phase transition from a
             superfluid (at small potential) to a normal phase (at large
             potential), but with different universality classes. As
             expected, the staggered case belongs to the XY universality,
             while the uniform potential induces a mean field transition.
             The disorder driven transition is clearly different from
             both; in particular, we find z approximately 1.4, nu
             approximately 1, and beta approximately 0.6.},
   Doi = {10.1103/PhysRevLett.97.115703},
   Key = {Priyadarshee06_hcbosons1}
}

@booklet{Baranger95,
   Author = {Baranger, HU},
   Title = {Quantum transport and chaos in semiconductor
             microstructures},
   Journal = {Physica D: Nonlinear Phenomena},
   Volume = {83},
   Number = {1-3},
   Pages = {30-45},
   Year = {1995},
   ISSN = {0167-2789},
   Abstract = {It is shown that classical chaotic scattering has
             experimentally measurable consequences for the quantum
             conductance of semiconductor microstructures. These include
             the existence of conductance fluctuations -a sensitivity of
             the conductance to either Fermi energy or magnetic field-
             and weak-localization -a change in the average conductance
             upon applying a magnetic field. We use semiclassical theory,
             random S-matrix theory, and numerical results to describe
             these interference effects for microstructures modeled by
             billiards attached to leads. The semiclassical theory
             predicts that the difference between chaotic and regular
             classical scattering produces a qualitative difference in
             the fluctuation spectrum and weak-localization lineshape of
             chaotic versus non-chaotic structures. The random S-matrix
             theory yields results for the magnitude of these
             interference effects. The conductance fluctuation and
             weak-localization magnitudes are universal if the number of
             incoming modes, N, is large: they are independent of the
             size and shape of the cavity. Of more relevance
             experimentally, in the limit of small N the full
             distribution of the conductance shows a striking dependence
             on N and magnetic field. © 1995.},
   Key = {Baranger95}
}

@article{baranger:665,
   Author = {Baranger, HU and Jalabert, RA and Stone, AD},
   Title = {Quantum-chaotic scattering effects in semiconductor
             microstructures.},
   Journal = {Chaos},
   Volume = {3},
   Number = {4},
   Pages = {665-682},
   Publisher = {AIP},
   Year = {1993},
   Month = {October},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/12780071},
   Keywords = {MICROSTRUCTURE; SEMICONDUCTOR MATERIALS; SCATTERING THEORY;
             CHAOTIC SYSTEMS; ELECTRIC CONDUCTIVITY; FLUCTUATIONS;
             SEMICLASSICAL APPROXIMATION; POWER SPECTRA; TRANSPORT
             PROCESSES; SCALING LAWS; POTENTIAL SCATTERING},
   Abstract = {We show that classical chaotic scattering has experimentally
             measurable consequences for the quantum conductance of
             semiconductor microstructures. These include the existence
             of conductance fluctuations-a sensitivity of the conductance
             to either Fermi energy or magnetic field-and
             weak-localization-a change in the average conductance upon
             applying a magnetic field. We develop a semiclassical theory
             and present numerical results for these two effects in which
             we model the microstructures by billiards attached to leads.
             We find that the difference between chaotic and regular
             classical scattering produces a qualitative difference in
             the fluctuation spectrum and weak-localization lineshape of
             chaotic and nonchaotic structures. While the semiclassical
             theory within the diagonal approximation accounts well for
             the weak-localization lineshape and for the spectrum of the
             fluctuations, we uncover a surprising failure of the
             semiclassical diagonal-approximation theory in describing
             the magnitude of these quantum transport
             effects.},
   Doi = {10.1063/1.165928},
   Key = {baranger:665}
}

@article{Ke08_qint,
   Author = {Ke, S-H and Yang, W and Baranger, HU},
   Title = {Quantum-interference-controlled molecular
             electronics.},
   Journal = {Nano Letters},
   Volume = {8},
   Number = {10},
   Pages = {3257-3261},
   Year = {2008},
   Month = {October},
   ISSN = {1530-6984},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/18803424},
   Abstract = {Quantum interference in coherent transport through single
             molecular rings may provide a mechanism to control the
             current in molecular electronics. We investigate its
             applicability, using a single-particle Green function method
             combined with ab initio electronic structure calculations.
             We find that the quantum interference effect (QIE) is
             strongly dependent on the interaction between molecular
             pi-states and contact sigma-states. It is masked by sigma
             tunneling in small molecular rings with Au leads, such as
             benzene, due to strong pi-sigma hybridization, while it is
             preserved in large rings, such as [18]annulene, which then
             could be used to realize quantum interference effect (QIE)
             transistors.},
   Doi = {10.1021/nl8016175},
   Key = {Ke08_qint}
}

@article{behringer:930,
   Author = {Behringer, R and Timp, G and Baranger, HU and Cunningham,
             JE},
   Title = {Quantum-mechanical features in the resistance of a submircon
             junction.},
   Journal = {Physical Review Letters},
   Volume = {66},
   Number = {7},
   Pages = {930-933},
   Publisher = {APS},
   Year = {1991},
   Month = {February},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10043943},
   Keywords = {WIRES; TEMPERATURE DEPENDENCE; ELECTRON – IMPURITY
             INTERACTIONS; MAGNETORESISTANCE; FLUCTUATIONS; DISORDERED
             SYSTEMS; HALL EFFECT; FERMI LEVEL; ELECTRON GAS; QUANTUM
             MECHANICS; NUMERICAL DATA; HETEROSTRUCTURES},
   Doi = {10.1103/physrevlett.66.930},
   Key = {behringer:930}
}

@booklet{Chang89,
   Author = {Chang, AM and Chang, TY and Baranger, HU},
   Title = {Quenching of the Hall resistance in a novel
             geometry.},
   Journal = {Physical Review Letters},
   Volume = {63},
   Number = {9},
   Pages = {996-999},
   Publisher = {APS},
   Year = {1989},
   Month = {August},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10041242},
   Keywords = {HALL EFFECT; INHIBITION; GEOMETRY; GALLIUM ARSENIDES;
             ALUMINIUM ARSENIDES; HETEROSTRUCTURES; QUANTUM MECHANICS;
             ELECTRON DENSITY; ULTRALOW TEMPERATURE; MAGNETIC
             FIELDS},
   Doi = {10.1103/PhysRevLett.63.996},
   Key = {Chang89}
}

@article{baranger:414,
   Author = {Baranger, HU and Stone, AD},
   Title = {Quenching of the Hall resistance in ballistic
             microstructures: A collimation effect.},
   Journal = {Physical Review Letters},
   Volume = {63},
   Number = {4},
   Pages = {414-417},
   Publisher = {APS},
   Year = {1989},
   Month = {July},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10041067},
   Keywords = {HALL EFFECT; INHIBITION; MICROSTRUCTURE; MAGNETIC FIELDS;
             ONE – DIMENSIONAL SYSTEMS; WIRES; WIDTH; ELECTRIC
             PROBES},
   Doi = {10.1103/PhysRevLett.63.414},
   Key = {baranger:414}
}

@article{fds303609,
   Author = {Mathur, H and Baranger, HU},
   Title = {Random Berry Phase Magnetoresistance as a Probe of Interface
             Roughness in Si MOSFETs},
   Volume = {64},
   Pages = {235325},
   Year = {2000},
   Month = {August},
   url = {http://arxiv.org/abs/cond-mat/0008375v1},
   Abstract = {The effect of silicon-oxide interface roughness on the
             weak-localization magnetoconductance of a silicon MOSFET in
             a magnetic field, tilted with respect to the interface, is
             studied. It is shown that an electron picks up a random
             Berry's phase as it traverses a closed orbit. Effectively,
             due to roughness, the electron sees an uniform field
             parallel to the interface as a random perpendicular field.
             At zero parallel field the dependence of the conductance on
             the perpendicular field has a well known form, the
             weak-localization lineshape. Here the effect of applying a
             fixed parallel field on the lineshape is analyzed. Many
             types of behavior are found including homogeneous
             broadening, inhomogeneous broadening and a remarkable regime
             in which the change in lineshape depends only on the
             magnetic field, the two length scales that characterize the
             interface roughness and fundamental constants. Good
             agreement is obtained with experiments that are in the
             homogeneous broadening limit. The implications for using
             weak-localization magnetoconductance as a probe of interface
             roughness, as proposed by Wheeler and coworkers, are
             discussed.},
   Doi = {10.1103/PhysRevB.64.235325},
   Key = {fds303609}
}

@booklet{Mathur01,
   Author = {Mathur, H and Baranger, HU},
   Title = {Random berry phase magnetoresistance as a probe of interface
             roughness in Si MOSFET'S},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {64},
   Number = {23},
   Pages = {2353251-23532520},
   Year = {2001},
   ISSN = {0163-1829},
   Abstract = {The effect of silicon-oxide interface roughness on the
             weak-localization magnetoconductance of a silicon
             metal-oxide-semiconductor field-effect transistor in a
             magnetic field, tilted with respect to the interface, is
             studied. It is shown that an electron picks up a random
             Berry's phase as it traverses a closed orbit. Effectively,
             due to roughness, the electron sees a uniform field parallel
             to the interface as a random perpendicular field. At zero
             parallel field the dependence of the conductance on the
             perpendicular field has a well-known form, the
             weak-localization line shape. Here the effect of applying a
             fixed parallel field on the line shape is analyzed. Many
             types of behavior are found including homogeneous
             broadening, inhomogeneous broadening, and a remarkable
             regime in which the change in line shape depends only on the
             magnetic field, the two length scales that characterize the
             interface roughness, and fundamental constants. Good
             agreement is obtained with experiments that are in the
             homogeneous broadening limit. The implications for using
             weak-localization magneto-conductance as a probe of
             interface roughness, as proposed by Wheeler and co-workers,
             are discussed.},
   Key = {Mathur01}
}

@article{chang:2745,
   Author = {Chang, AM and Timp, G and Cunningham, JE and Mankiewich, PM and Behringer, RE and Howard, RE and Baranger, HU},
   Title = {Real-space and magnetic-field correlation of
             quantum-resistance fluctuations in the ballistic regime in
             narrow GaAs-AlxGa},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {37},
   Number = {5},
   Pages = {2745-2748},
   Publisher = {APS},
   Year = {1988},
   Month = {February},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9944842},
   Keywords = {GALLIUM ARSENIDES; ALUMINIUM ARSENIDES; ONE –
             DIMENSIONAL SYSTEMS; WIRES; TRANSPORT PROCESSES; QUANTUM
             MECHANICS; HETEROSTRUCTURES; ELECTRIC CONDUCTIVITY;
             FLUCTUATIONS; CORRELATIONS; MAGNETIC FIELDS},
   Key = {chang:2745}
}

@booklet{Baranger96,
   Author = {Baranger, HU and Mello, PA},
   Title = {Reflection symmetric ballistic microstructures: Quantum
             transport properties.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {54},
   Number = {20},
   Pages = {R14297-R14300},
   Publisher = {APS},
   Year = {1996},
   Month = {November},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9985511},
   Keywords = {NANOSTRUCTURES; CHAOTIC SYSTEMS; HETEROSTRUCTURES; TRANSPORT
             PROCESSES; ELECTRIC CONDUCTIVITY; TRANSMISSION; S MATRIX;
             REFLECTION; P INVARIANCE},
   Key = {Baranger96}
}

@booklet{Band92,
   Author = {Band, YB and Baranger, HU and Avishai, Y},
   Title = {Relationship between resistance, localization length, and
             inelastic-scattering length.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {45},
   Number = {3},
   Pages = {1488-1491},
   Publisher = {APS},
   Year = {1992},
   Month = {January},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10001639},
   Keywords = {ELECTRIC CONDUCTIVITY; LOCALIZED STATES; INELASTIC
             SCATTERING; WIRES; DISTRIBUTION FUNCTIONS; ANALYTICAL
             SOLUTION; TEMPERATURE DEPENDENCE; ELASTIC SCATTERING;
             TRANSMISSION; REFLECTION; SCATTERING AMPLITUDES; INTEGRAL
             EQUATIONS; RANDOM WALK; MEAN FREE PATH},
   Key = {Band92}
}

@article{fds318395,
   Author = {Fang, Y-LL and Baranger, HU},
   Title = {Reprint of : Photon correlations generated by inelastic
             scattering in a one-dimensional waveguide coupled to
             three-level systems},
   Journal = {Physica E: Low-dimensional Systems and Nanostructures},
   Volume = {82},
   Pages = {71-78},
   Year = {2016},
   Month = {August},
   url = {http://dx.doi.org/10.1016/j.physe.2016.02.015},
   Doi = {10.1016/j.physe.2016.02.015},
   Key = {fds318395}
}

@article{fds323837,
   Author = {Zhang, G and Novais, E and Baranger, HU},
   Title = {Rescuing a Quantum Phase Transition with Quantum
             Noise.},
   Journal = {Physical Review Letters},
   Volume = {118},
   Number = {5},
   Pages = {050402},
   Year = {2017},
   Month = {February},
   url = {http://dx.doi.org/10.1103/physrevlett.118.050402},
   Abstract = {We show that placing a quantum system in contact with an
             environment can enhance non-Fermi-liquid correlations,
             rather than destroy quantum effects, as is typical. The
             system consists of two quantum dots in series with two
             leads; the highly resistive leads couple charge flow through
             the dots to the electromagnetic environment, the source of
             quantum noise. While the charge transport inhibits a quantum
             phase transition, the quantum noise reduces charge transport
             and restores the transition. We find a non-Fermi-liquid
             intermediate fixed point for all strengths of the noise. For
             strong noise, it is similar to the intermediate fixed point
             of the two-impurity Kondo model.},
   Doi = {10.1103/physrevlett.118.050402},
   Key = {fds323837}
}

@article{Novais06_qec2,
   Author = {Novais, E and Mucciolo, ER and Baranger, HU},
   Title = {Resilient quantum computation in correlated environments: a
             quantum phase transition perspective.},
   Journal = {Physical Review Letters},
   Volume = {98},
   Number = {4},
   Pages = {040501},
   Year = {2007},
   Month = {January},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/17358749},
   Abstract = {We analyze the problem of a quantum computer in a correlated
             environment protected from decoherence by quantum error
             correction using a perturbative renormalization group
             approach. The scaling equation obtained reflects the
             competition between the dimension of the computer and the
             scaling dimension of the correlations. For an irrelevant
             flow, the error probability is reduced to a stochastic form
             for a long time and/or a large number of qubits; thus, the
             traditional derivation of the threshold theorem holds for
             these error models. In this way, the "threshold theorem" of
             quantum computing is rephrased as a dimensional
             criterion.},
   Doi = {10.1103/PhysRevLett.98.040501},
   Key = {Novais06_qec2}
}

@booklet{Baranger88,
   Author = {Baranger, HU and Stone, AD and DiVincenzo, DP},
   Title = {Resistance fluctuations in multiprobe microstructures:
             Length dependence and nonlocality.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {37},
   Number = {11},
   Pages = {6521-6524},
   Year = {1988},
   Month = {April},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9943907},
   Key = {Baranger88}
}

@article{Ke06_oep,
   Author = {Ke, S-H and Baranger, HU and Yang, W},
   Title = {Role of the exchange-correlation potential in ab initio
             electron transport calculations.},
   Journal = {Journal of Chemical Physics},
   Volume = {126},
   Number = {20},
   Pages = {201102},
   Year = {2007},
   Month = {May},
   ISSN = {0021-9606},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/17552745},
   Abstract = {The effect of the exchange-correlation potential in ab
             initio electron transport calculations is investigated by
             constructing optimized effective potentials using different
             energy functionals or the electron density from second-order
             perturbation theory. The authors calculate electron
             transmission through two atomic chain systems, one with
             charge transfer and one without. Dramatic effects are caused
             by two factors: changes in the energy gap and the
             self-interaction error. The error in conductance caused by
             the former is about one order of magnitude while that caused
             by the latter ranges from several times to two orders of
             magnitude, depending on the coupling strength and charge
             transfer. The implications for accurate quantum transport
             calculations are discussed.},
   Doi = {10.1063/1.2743004},
   Key = {Ke06_oep}
}

@article{Jiang04_scrambling,
   Author = {Jiang, H and Ullmo, D and Yang, W and Baranger, HU},
   Title = {Scrambling and Gate Effects in Realistic Quantum
             Dots},
   Volume = {71},
   Pages = {085313},
   Publisher = {(cond-mat/0405262)},
   Year = {2004},
   Month = {May},
   url = {http://arxiv.org/abs/cond-mat/0405262v2},
   Abstract = {We evaluate the magnitude of two important mesoscopic
             effects using a realistic model of typical quantum dots.
             ``Scrambling'' and ``gate effect'' are defined as the change
             in the single-particle spectrum due to added electrons or
             gate-induced shape deformation, respectively. These two
             effects are investigated systematically in both the
             self-consistent Kohn-Sham (KS) theory and a Fermi
             liquid-like Strutinsky approach. We find that the genuine
             scrambling effect is small because the potential here is
             smooth. In the KS theory, a key point is the implicit
             inclusion of residual interactions in the spectrum; these
             dominate and make scrambling appear larger. Finally, the
             gate effect is comparable in the two cases and, while small,
             is able to cause gate-induced spin transitions.},
   Doi = {10.1103/PhysRevB.71.085313},
   Key = {Jiang04_scrambling}
}

@article{fds245065,
   Author = {Jiang, H and Ullmo, D and Yang, W and Baranger, HU},
   Title = {Scrambling and gate-induced fluctuations in realistic
             quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {71},
   Number = {8},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://dx.doi.org/10.1103/PhysRevB.71.085313},
   Abstract = {We evaluate the magnitude of two important mesoscopic
             effects using a realistic model of typical quantum dots.
             "Scrambling" and "gate effect" are defined as the change in
             the single-particle spectrum due to added electrons or
             gate-induced shape deformation, respectively. These two
             effects are investigated systematically in both the
             'self-consistent Kohn-Sham (KS) theory and a Fermi
             liquidlike Strutinsky approach. We find that the genuine
             scrambling effect is small because the potential here is
             smooth. In the KS theory, a key point is the implicit
             inclusion of residual interactions in the spectrum; these
             dominate and make scrambling appear larger. Finally, the
             gate effect is comparable in the two cases and, while small,
             is able to cause gate-induced spin transitions. ©2005 The
             American Physical Society.},
   Doi = {10.1103/PhysRevB.71.085313},
   Key = {fds245065}
}

@article{fds245170,
   Author = {Ullmo, D and Richter, K and Baranger, HU and Oppen, FV and Jalabert,
             RA},
   Title = {Semiclassical approach to orbital magnetism of interacting
             diffusive quantum systems},
   Journal = {Physica E: Low-Dimensional Systems and Nanostructures},
   Volume = {1},
   Number = {1-4},
   Pages = {268-273},
   Year = {1998},
   Abstract = {We study interaction effects on the orbital magnetism of
             diffusive mesoscopic quantum systems. By combining many-body
             perturbation theory with semiclassical techniques, we show
             that the interaction contribution to the ensemble-averaged
             quantum thermodynamic potential can be reduced to an
             essentially classical operator. We compute the magnetic
             response of disordered rings and dots for diffusive
             classical dynamics. Our semiclassical approach reproduces
             the results of previous diagrammatic quantum calculations.
             © 1997 Elsevier Science B.V. All rights
             reserved.},
   Key = {fds245170}
}

@booklet{Ullmo97,
   Author = {D. Ullmo and K. Richter and H. U. Baranger and F. von Oppen and R. A. Jalabert},
   Title = {Semiclassical approach to orbital magnetism of interacting
             diffusive quantum systems},
   Journal = {Physica E},
   Volume = {1},
   Number = {1-4},
   Pages = {268 -- 273},
   Year = {1997},
   Month = {December},
   Key = {Ullmo97}
}

@article{fds303611,
   Author = {Ullmo, D and Nagano, T and Tomsovic, S and Baranger,
             HU},
   Title = {Semiclassical Density Functional Theory: Strutinsky Energy
             Corrections in Quantum Dots},
   Volume = {63},
   Pages = {125339},
   Year = {2000},
   Month = {July},
   url = {http://arxiv.org/abs/cond-mat/0007330v1},
   Abstract = {We develop a semiclassical density functional theory in the
             context of quantum dots. Coulomb blockade conductance
             oscillations have been measured in several experiments using
             nanostructured quantum dots. The statistical properties of
             these oscillations remain puzzling, however, particularly
             the statistics of spacings between conductance peaks. To
             explore the role that residual interactions may play in the
             spacing statistics, we consider many-body systems which
             include electron-electron interactions through an explicit
             density functional. First, we develop an approximate series
             expansion for obtaining the ground state using the idea of
             the Strutinsky shell correction method. Next, we relate the
             second-order semiclassical corrections to the screened
             Coulomb potential. Finally, we investigate the validity of
             the approximation method by numerical calculation of a
             one-dimensional model system, and show the relative
             magnitudes of the successive terms as a function of particle
             number.},
   Doi = {10.1103/PhysRevB.63.125339},
   Key = {fds303611}
}

@booklet{Ullmo01a,
   Author = {Ullmo, D and Nagano, T and Tomsovic, S and Baranger,
             HU},
   Title = {Semiclassical density functional theory: Strutinsky energy
             corrections in quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {63},
   Number = {12},
   Pages = {1253391-12533913},
   Year = {2001},
   ISSN = {0163-1829},
   Abstract = {We develop a semiclassical density functional theory in the
             context of quantum dots. Coulomb blockade conductance
             oscillations have been measured in several experiments using
             nanostructured quantum dots. The statistical properties of
             these oscillations remain puzzling, however, particularly
             the statistics of spacings between conductance peaks. To
             explore the role that residual interactions may play in the
             spacing statistics, we consider many-body systems that
             include electron-electron interactions through an explicit
             density functional. First, we develop an approximate series
             expansion for obtaining the ground state using the idea of
             the Strutinsky shell correction method. Next, we relate the
             second-order semiclassical corrections to the screened
             Coulomb potential. Finally, we investigate the validity of
             the approximation method by numerical calculation of a
             one-dimensional model system, and show the relative
             magnitudes of the successive terms as a function of particle
             number.},
   Key = {Ullmo01a}
}

@article{fds303608,
   Author = {Narimanov, EE and Baranger, HU and Cerruti, NR and Tomsovic,
             S},
   Title = {Semiclassical Theory of Coulomb Blockade Peak Heights in
             Chaotic Quantum Dots},
   Volume = {64},
   Number = {23},
   Pages = {2353291-23532913},
   Year = {2001},
   Month = {January},
   url = {http://arxiv.org/abs/cond-mat/0101034v1},
   Abstract = {We develop a semiclassical theory of Coulomb blockade peak
             heights in chaotic quantum dots. Using Berry's conjecture,
             we calculate the peak height distributions and the
             correlation functions. We demonstrate that the corrections
             to the corresponding results of the standard statistical
             theory are non-universal and can be expressed in terms of
             the classical periodic orbits of the dot that are well
             coupled to the leads. The main effect is an oscillatory
             dependence of the peak heights on any parameter which is
             varied; it is substantial for both symmetric and asymmetric
             lead placement. Surprisingly, these dynamical effects do not
             influence the full distribution of peak heights, but are
             clearly seen in the correlation function or power spectrum.
             For non-zero temperature, the correlation function obtained
             theoretically is in good agreement with that measured
             experimentally.},
   Doi = {10.1103/PhysRevB.64.235329},
   Key = {fds303608}
}

@booklet{Narimanov01,
   Author = {Narimanov, EE and Baranger, HU and Cerruti, NR and Tomsovic,
             S},
   Title = {Semiclassical theory of Coulomb blockade peak heights in
             chaotic quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {64},
   Number = {23},
   Pages = {2353291-23532913},
   Year = {2001},
   ISSN = {0163-1829},
   Abstract = {We develop a semiclassical theory of Coulomb blockade peak
             heights in chaotic quantum dots. Using Berry's conjecture,
             we calculate peak height distributions and correlation
             functions. We demonstrate that corrections to the
             corresponding results of the standard statistical theory are
             nonuniversal, and can be expressed in terms of the classical
             periodic orbits of the dot that are well coupled to the
             leads. The main effect is an oscillatory dependence of the
             peak heights on any parameter which is varied; it is
             substantial for both symmetric and asymmetric lead
             placement. Surprisingly, these dynamical effects do not
             influence the full distribution of peak heights, but are
             clearly seen in the correlation function or power spectrum.
             For nonzero temperature, the correlation function obtained
             theoretically is consistent with that measured
             experimentally.},
   Key = {Narimanov01}
}

@article{woodward:1353,
   Author = {Woodward, TK and Chemla, DS and Bar-Joseph, I and Baranger, HU and Sivco, DL and Cho, AY},
   Title = {Sequential versus coherent tunneling in double-barrier
             diodes investigated by differential absorption
             spectroscopy.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {44},
   Number = {3},
   Pages = {1353-1356},
   Publisher = {APS},
   Year = {1991},
   Month = {July},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9999652},
   Keywords = {HETEROSTRUCTURES; ABSORPTION SPECTRA; CHARGE DISTRIBUTION;
             ELECTRIC CURRENTS; QUANTUM WELL STRUCTURES; TUNNEL
             EFFECT},
   Key = {woodward:1353}
}

@article{fds245049,
   Author = {Woodward, TK and Chemla, DS and Bar-Joseph, I and Baranger, HU and Sivco, DL and Cho, AY},
   Title = {Sequential vs. coherent tunneling in double barrier diodes
             investigated by differential absorption spectroscopy},
   Journal = {Technical Digest - International Electron Devices
             Meeting},
   Pages = {959-962},
   Year = {1990},
   Abstract = {The charge distributions in the quantum wells of several
             double barrier diodes were measured. It is found that the
             ratio of the stored charge to the current is not equal to
             the coherent state lifetime and is basically insensitive to
             the amount of scattering. It was experimentally demonstrated
             that phase breaking collisions take place in the present
             structures by observing the energy distribution of the
             stored charge in both single and double resonance
             structures.},
   Key = {fds245049}
}

@booklet{Baranger96a,
   Author = {Baranger, HU and Mello, PA},
   Title = {Short paths and information theory in quantum chaotic
             scattering: Transport through quantum dots},
   Journal = {EPL (Europhysics Letters)},
   Volume = {33},
   Number = {6},
   Pages = {465-470},
   Year = {1996},
   ISSN = {0295-5075},
   url = {http://dx.doi.org/10.1209/epl/i1996-00364-5},
   Abstract = {We propose an information-theoretic model to describe the
             common features of typical chaotic scattering processes by
             including two time scales, a prompt and an equilibrated
             component. The model, introduced in nuclear physics, uses
             the average value of the scattering matrix to describe the
             prompt processes, and satisfies flux conservation,
             causality, and ergodicity. We show that the model
             successfully describes electronic transport through a much
             larger class of chaotic quantum dots than previously
             considered. The predicted distribution of the conductance
             may differ dramatically from that of previous
             models.},
   Doi = {10.1209/epl/i1996-00364-5},
   Key = {Baranger96a}
}

@article{Kaul06_Kspect,
   Author = {Kaul, RK and Zaránd, G and Chandrasekharan, S and Ullmo, D and Baranger, HU},
   Title = {Spectroscopy of the Kondo problem in a box.},
   Journal = {Physical Review Letters},
   Volume = {96},
   Number = {17},
   Pages = {176802},
   Year = {2006},
   Month = {May},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/16712322},
   Abstract = {Motivated by experiments on double quantum dots, we study
             the problem of a single magnetic impurity confined in a
             finite metallic host. We prove an exact theorem for the
             ground state spin, and use analytic and numerical arguments
             to map out the spin structure of the excitation spectrum of
             the many-body Kondo-correlated state, throughout the weak to
             strong coupling crossover. These excitations can be probed
             in a simple tunneling-spectroscopy transport experiment; for
             that situation we solve rate equations for the
             conductance.},
   Doi = {10.1103/PhysRevLett.96.176802},
   Key = {Kaul06_Kspect}
}

@booklet{Jiang03a,
   Author = {H. Jiang and H. U. Baranger and W. Yang},
   Title = {Spin and conductance-peak-spacing distributions in large
             quantum dots: A density-functional theory
             study},
   Journal = {Physical Review Letters},
   Volume = {90},
   Number = {2},
   Year = {2003},
   Month = {January},
   Key = {Jiang03a}
}

@article{fds245187,
   Author = {Jiang, H and Baranger, HU and Yang, W},
   Title = {Spin and conductance-peak-spacing distributions in large
             quantum dots: a density-functional theory
             study.},
   Journal = {Physical Review Letters},
   Volume = {90},
   Number = {2},
   Pages = {026806},
   Year = {2003},
   Month = {January},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/12570571},
   Abstract = {We use spin-density-functional theory to study the spacing
             between conductance peaks and the ground-state spin of 2D
             model quantum dots with up to 200 electrons. Distributions
             for different ranges of electron number are obtained in both
             symmetric and asymmetric potentials. The even/odd effect is
             pronounced for small symmetric dots but vanishes for large
             asymmetric ones, suggesting substantially stronger
             interaction effects than expected. The fraction of high-spin
             ground states is remarkably large.},
   Doi = {10.1103/PhysRevLett.90.026806},
   Key = {fds245187}
}

@booklet{Usaj02,
   Author = {Usaj, G and Baranger, HU},
   Title = {Spin and e-e interactions in quantum dots: Leading order
             corrections to universality and temperature
             effects},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {66},
   Number = {15},
   Pages = {1553331-15533315},
   Year = {2002},
   ISSN = {0163-1829},
   url = {http://arxiv.org/abs/cond-mat/0203074v1},
   Abstract = {We study the statistics of the spacing between Coulomb
             blockade conductance peaks in quantum dots with large
             dimensionless conductance g. Our starting point is the
             "universal Hamiltonian" - valid in the g → ∞ limit -
             which includes the charging energy, the single-electron
             energies (described by random matrix theory), and the
             average exchange interaction. We then calculate the
             magnitude of the most relevant finite g corrections, namely,
             the effect of surface charge, the "gate" effect, and the
             fluctuation of the residual e-e interaction. The resulting
             zero-temperature peak spacing distribution has corrections
             of order Δ/√g. For typical values of the e-e interaction
             (rs∼1) and simple geometries, theory predicts an
             asymmetric distribution with a significant even/odd effect.
             The width of the distribution is of order 0.3Δ, and its
             dominant feature is a large peak for the odd case,
             reminiscent of the δ function in the g→∞ limit. We
             consider finite temperature effects next. Only after their
             inclusion is good agreement with the experimental results
             obtained. Even relatively low temperature causes large
             modifications in the peak spacing distribution: (i) its peak
             is dominated by the even distribution at kBT∼0.3Δ (at
             lower T a double peak appears), (ii) the even/odd effect is
             considerably weaker, (iii) the δ function is completely
             washed out, and (v) fluctuation of the coupling to the leads
             becomes relevant. Experiments aimed at observing the T=0
             peak spacing distribution should therefore be done at
             kBT<0.1Δ for typical values of the e-e
             interaction.},
   Doi = {10.1103/PhysRevB.66.155333},
   Key = {Usaj02}
}

@article{Vorojtsov04_multielecqubits,
   Author = {Vorojtsov, S and Mucciolo, ER and Baranger, HU},
   Title = {Spin qubits in multielectron quantum dots},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {69},
   Number = {11},
   Pages = {1153291-1153296},
   Year = {2004},
   ISSN = {0163-1829},
   url = {http://arxiv.org/abs/cond-mat/0308118v3},
   Keywords = {quantum dots; mesoscopic systems; exchange interactions
             (electron); electron spin; quantum computing},
   Abstract = {We study the effect of mesoscopic fluctuations on the
             magnitude of errors that can occur in exchange operations on
             quantum dot spin qubits. Midsize double quantum dots, with
             an odd number of electrons in the range of a few tens in
             each dot, are investigated through the constant interaction
             model using realistic parameters. It is found that the
             constraint of having short pulses and small errors implies
             keeping accurate control, at the few percent level, of
             several electrode voltages. In practice, the number of
             independent parameters per dot that one should tune depends
             on the configuration and ranges from one to
             four.},
   Doi = {10.1103/PhysRevB.69.115329},
   Key = {Vorojtsov04_multielecqubits}
}

@article{fds303600,
   Author = {Bera, S and Florens, S and Baranger, HU and Roch, N and Nazir, A and Chin,
             AW},
   Title = {Stabilizing Spin Coherence Through Environmental
             Entanglement in Strongly Dissipative Quantum
             Systems},
   Journal = {Phys. Rev. B},
   Volume = {89},
   Pages = {121108},
   Year = {2013},
   Month = {July},
   url = {http://arxiv.org/abs/1307.5681v2},
   Abstract = {The key feature of a quantum spin coupled to a harmonic
             bath---a model dissipative quantum system---is competition
             between oscillator potential energy and spin tunneling rate.
             We show that these opposing tendencies cause environmental
             entanglement through superpositions of adiabatic and
             antiadiabatic oscillator states, which then stabilizes the
             spin coherence against strong dissipation. This insight
             motivates a fast-converging variational coherent-state
             expansion for the many-body ground state of the spin-boson
             model, which we substantiate via numerical quantum
             tomography.},
   Doi = {10.1103/PhysRevB.89.121108},
   Key = {fds303600}
}

@article{fds225585,
   Author = {S. Bera and S. Florens and H. U. Baranger and N. Roch and A. Nazir and A.
             W. Chin},
   Title = {Stabilizing Spin Coherence through Environmental
             Entanglement in Strongly Dissipative Quantum
             Systems},
   Journal = {Phys. Rev. B},
   Volume = {89},
   Pages = {121108(R)},
   Year = {2014},
   Month = {March},
   url = {http://arxiv.org/pdf/1307.5681v2.pdf},
   Doi = {10.1103/PhysRevB.89.121108},
   Key = {fds225585}
}

@booklet{Mello02,
   Author = {Mello, PA and Baranger, HU},
   Title = {Statistical wave scattering: From the atomic nucleus to
             mesoscopic systems to microwave cavities},
   Journal = {Physica A: Statistical Mechanics and its
             Applications},
   Volume = {306},
   Number = {1-4},
   Pages = {323-333},
   Year = {2002},
   ISSN = {0378-4371},
   url = {http://dx.doi.org/10.1016/S0378-4371(02)00509-5},
   Abstract = {Universal statistical aspects of wave scattering by a
             variety of physical systems ranging from atomic nuclei to
             mesoscopic systems and microwave cavities are described. A
             statistical model for the scattering matrix, introduced in
             the past in the context of nuclear physics, is employed to
             address the problem of quantum chaotic scattering. The main
             application of the model is the analysis of electronic
             transport through ballistic mesoscopic cavities: it
             describes well the results from the numerical solutions of
             the Schrödinger equation for two-dimensional systems. ©
             2002 Published by Elsevier Science B.V.},
   Doi = {10.1016/S0378-4371(02)00509-5},
   Key = {Mello02}
}

@article{fds245117,
   Author = {Miller, M and Ullmo, D and Baranger, HU},
   Title = {Statistics of wave functions in disordered systems with
             applications to Coulomb blockade peak spacing},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {72},
   Number = {4},
   Pages = {045305},
   Publisher = {cond-mat/0406493},
   Year = {2005},
   ISSN = {1098-0121},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/millerub04_psistats.pdf},
   Abstract = {Despite considerable work on the energy-level and wave
             function statistics of disordered quantum systems, numerical
             studies of those statistics relevant for electron-electron
             interactions in mesoscopic systems have been lacking. We
             plug this gap by using a tight-binding model to study a wide
             variety of statistics for the two-dimensional, disordered
             quantum system in the diffusive regime. Our results are in
             good agreement with random matrix theory (or its extensions)
             for simple statistics such as the probability distribution
             of energy levels or spatial correlation of a wave function.
             However, we see substantial disagreement in several
             statistics which involve both integrating over space and
             different energy levels, indicating that disordered systems
             are more complex than previously thought. These are exactly
             the quantities relevant to electron-electron interaction
             effects in quantum dots; in fact, we apply these results to
             the Coulomb blockade, where we find altered spacings between
             conductance peaks and wider spin distributions than
             traditionally expected. © 2005 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.72.045305},
   Key = {fds245117}
}

@article{fds245072,
   Author = {Zheng, H and Gauthier, DJ and Baranger, HU},
   Title = {Strongly correlated photons generated by coupling a three-
             or four-level system to a waveguide},
   Journal = {Physical Review A - Atomic, Molecular, and Optical
             Physics},
   Volume = {85},
   Number = {4},
   Pages = {043832},
   Year = {2012},
   ISSN = {1050-2947},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/ZhengGB12_strongcor3LS4LS.pdf},
   Abstract = {We study the generation of strongly correlated photons by
             coupling an atom to photonic quantum fields in a
             one-dimensional waveguide. Specifically, we consider a
             three-level or four-level system for the atom. Photon-photon
             bound states emerge as a manifestation of the strong
             photon-photon correlation mediated by the atom. Effective
             repulsive or attractive interaction between photons can be
             produced, causing either suppressed multiphoton transmission
             (photon blockade) or enhanced multiphoton transmission
             (photon-induced tunneling). As a result, nonclassical light
             sources can be generated on demand by sending coherent
             states into the proposed system. We calculate the
             second-order correlation function of the transmitted field
             and observe bunching and antibunching caused by the bound
             states. Furthermore, we demonstrate that the proposed system
             can produce photon pairs with a high degree of spectral
             entanglement, which have a large capacity for carrying
             information and are important for large-alphabet quantum
             communication. © 2012 American Physical
             Society.},
   Doi = {10.1103/PhysRevA.85.043832},
   Key = {fds245072}
}

@article{sumetskii:1352,
   Author = {Sumetskii, MI and Baranger, HU},
   Title = {Studying the insulator-conductor interface with a scanning
             tunneling microscope},
   Journal = {Applied Physics Letters},
   Volume = {66},
   Pages = {1352-},
   Publisher = {AIP},
   Year = {1995},
   ISSN = {0003-6951},
   url = {http://link.aip.org/link/?APL/66/1352/1},
   Keywords = {SILICON; SILICON OXIDES; INTERFACE STRUCTURE; STM;
             MORPHOLOGY; SPATIAL RESOLUTION; ROUGHNESS},
   Abstract = {We suggest that a scanning tunneling microscope (STM) may be
             used for investigating the insulator-conductor interface, in
             particular SiO2/Si, at nanometer scale. For an insulating
             film transparent to tunneling, we estimate, using a simple
             model, the roughness of the interface from the STM image. It
             is found that the interface roughness is less than the
             roughness of the image surface times the ratio of effective
             decay lengths in the film and in vacuum. For relatively wide
             films, of order 10 nm, STM measurement in the field emission
             regime can give the interface image with 1 nm precision.©
             1995 American Institute of Physics.},
   Key = {sumetskii:1352}
}

@booklet{Timp89,
   Author = {Timp, G and Mankiewich, PM and deVegvar, P and Behringer, R and Cunningham, JE and Howard, RE and Baranger, HU and Jain,
             JK},
   Title = {Suppression of the Aharonov-Bohm effect in the quantized
             Hall regime.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {39},
   Number = {9},
   Pages = {6227-6230},
   Publisher = {APS},
   Year = {1989},
   Month = {March},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9949054},
   Keywords = {GALLIUM ARSENIDES; ALUMINIUM ARSENIDES; HETEROSTRUCTURES;
             RINGS; QUANTUM HALL EFFECT; MAGNETORESISTANCE},
   Key = {Timp89}
}

@article{Wurm08_graphene,
   Author = {Wurm, J and Rycerz, A and Adagideli, I and Wimmer, M and Richter, K and Baranger, HU},
   Title = {Symmetry classes in graphene quantum dots: universal
             spectral statistics, weak localization, and conductance
             fluctuations.},
   Journal = {Physical Review Letters},
   Volume = {102},
   Number = {5},
   Pages = {056806},
   Year = {2009},
   Month = {February},
   ISSN = {0031-9007},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/19257538},
   Abstract = {We study the symmetry classes of graphene quantum dots, both
             open and closed, through the conductance and energy level
             statistics. For abrupt termination of the lattice, these
             properties are well described by the standard orthogonal and
             unitary ensembles. However, for smooth mass confinement,
             special time-reversal symmetries associated with the
             sublattice and valley degrees of freedom are critical: they
             lead to block diagonal Hamiltonians and scattering matrices
             with blocks belonging to the unitary symmetry class even at
             zero magnetic field. While the effect of this structure is
             clearly seen in the conductance of open dots, it is
             suppressed in the spectral statistics of closed dots,
             because the intervalley scattering time is shorter than the
             time required to resolve a level spacing in the closed
             systems but longer than the escape time of the open
             systems.},
   Doi = {10.1103/PhysRevLett.102.056806},
   Key = {Wurm08_graphene}
}

@booklet{Gopar96,
   Author = {Gopar, VA and Martínez, M and Mello, PA and Baranger,
             HU},
   Title = {The invariant measure for scattering matrices with block
             symmetries},
   Journal = {Journal of Physics A: Mathematical and General},
   Volume = {29},
   Number = {4},
   Pages = {881-888},
   Year = {1996},
   ISSN = {0305-4470},
   url = {http://dx.doi.org/10.1088/0305-4470/29/4/014},
   Abstract = {We find the invariant measure for two new types of S
             matrices relevant for chaotic scattering from a cavity in a
             waveguide. The S matrices considered can be written as a 2
             × 2 matrix of blocks, each of rank N, in which the two
             diagonal blocks are identical and the two off-diagonal
             blocks are identical. The S matrices are unitary; in
             addition, they may be symmetric because of time-reversal
             symmetry. The invariant measure, with and without the
             condition of symmetry, is given explicitly in terms of the
             invariant measures for the well known circular unitary and
             orthogonal ensembles. Some implications are drawn for the
             resulting statistical distribution of the transmission
             coefficient through a chaotic cavity. © 1996 IOP Publishing
             Ltd.},
   Doi = {10.1088/0305-4470/29/4/014},
   Key = {Gopar96}
}

@booklet{Matveev96a,
   Author = {Matveev, KA and Glazman, LI and Baranger, HU},
   Title = {Theory of Coulomb blockade of tunneling through a double
             quantum dot},
   Journal = {Surface Science},
   Volume = {361-362},
   Number = {1-3},
   Pages = {623-626},
   Year = {1996},
   url = {http://dx.doi.org/10.1016/0039-6028(96)00484-0},
   Abstract = {We present a theory of Coulomb blockade oscillations in
             tunneling through a pair of quantum dots connected by a
             tunable tunneling junction. The positions and amplitudes of
             peaks in the linear conductance are directly related,
             respectively, to the ground state energy and to the dynamics
             of charge fluctuations. Our theory allows for a quantitative
             comparison with the experimentally observed peak positions.
             In the strong tunneling limit, we predict a striking
             powder-law temperature-dependence of the peak
             amplitudes.},
   Doi = {10.1016/0039-6028(96)00484-0},
   Key = {Matveev96a}
}

@article{Ke08_thermopower,
   Author = {Ke, S-H and Yang, W and Curtarolo, S and Baranger,
             HU},
   Title = {Thermopower of Molecular Junctions},
   Journal = {Nano Lett.},
   Volume = {9},
   Number = {3},
   Pages = {1011-1014},
   Year = {2009},
   Month = {January},
   ISSN = {1530-6984},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/KeYCB09_thermopower1.pdf},
   Abstract = {Molecular nanojunctions may support efficient thermoelectric
             conversion through enhanced thermopower. Recently, this
             quantity has been measured for several conjugated molecular
             nanojunctions with gold electrodes. Considering the wide
             variety of possible metal/molecule systems-almost none of
             which have been studied-it seems highly desirable to be able
             to calculate the thermopower of junctions with reasonable
             accuracy and high efficiency. To address this task, we
             demonstrate an effective approach based on the single
             particle green function (SPGF) method combined with density
             functional theory (DFT) using B3LYP and PBE0 energy
             functionals. Systematic good agreement between theory and
             experiment is obtained; indeed, much better agreement is
             found here than for comparable calculations of the
             conductance.},
   Doi = {10.1021/nl8031229},
   Key = {Ke08_thermopower}
}

@article{fds304506,
   Author = {Ke, S-H and Yang, W and Curtarolo, S and Baranger,
             HU},
   Title = {Thermopower of molecular junctions: an ab initio
             study.},
   Journal = {Nano Letters},
   Volume = {9},
   Number = {3},
   Pages = {1011-1014},
   Year = {2009},
   Month = {March},
   ISSN = {1530-6984},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/19203208},
   Abstract = {Molecular nanojunctions may support efficient thermoelectric
             conversion through enhanced thermopower. Recently, this
             quantity has been measured for several conjugated molecular
             nanojunctions with gold electrodes. Considering the wide
             variety of possible metal/molecule systems-almost none of
             which have been studied-it seems highly desirable to be able
             to calculate the thermopower of junctions with reasonable
             accuracy and high efficiency. To address this task, we
             demonstrate an effective approach based on the single
             particle green function (SPGF) method combined with density
             functional theory (DFT) using B3LYP and PBE0 energy
             functionals. Systematic good agreement between theory and
             experiment is obtained; indeed, much better agreement is
             found here than for comparable calculations of the
             conductance.},
   Doi = {10.1021/nl8031229},
   Key = {fds304506}
}

@article{Ke10_timedep,
   Author = {Ke, S-H and Liu, R and Yang, W and Baranger, HU},
   Title = {Time-dependent transport through molecular
             junctions.},
   Journal = {Journal of Chemical Physics},
   Volume = {132},
   Number = {23},
   Pages = {234105},
   Year = {2010},
   Month = {June},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/20572687},
   Abstract = {We investigate transport properties of molecular junctions
             under two types of bias--a short time pulse or an ac
             bias--by combining a solution for Green's functions in the
             time domain with electronic structure information coming
             from ab initio density functional calculations. We find that
             the short time response depends on lead structure, bias
             voltage, and barrier heights both at the molecule-lead
             contacts and within molecules. Under a low frequency ac
             bias, the electron flow either tracks or leads the bias
             signal (resistive or capacitive response) depending on
             whether the junction is perfectly conducting or not. For
             high frequency, the current lags the bias signal due to the
             kinetic inductance. The transition frequency is an intrinsic
             property of the junctions.},
   Doi = {10.1063/1.3435351},
   Key = {Ke10_timedep}
}

@article{fds245043,
   Author = {Zheng, H and Florens, S and Baranger, HU},
   Title = {Transport signatures of Majorana quantum criticality
             realized by dissipative resonant tunneling},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {89},
   Number = {23},
   Pages = {235135},
   Year = {2014},
   Month = {June},
   ISSN = {1098-0121},
   url = {http://arxiv.org/pdf/1403.5175v1.pdf},
   Doi = {10.1103/PhysRevB.89.235135},
   Key = {fds245043}
}

@article{fds225584,
   Author = {D. E. Liu and H. Zheng and G. FInkelstein and H. U.
             Baranger},
   Title = {Tunable Quantum Phase Transitions in a Resonant Level
             Coupled to Two Dissipative Baths},
   Journal = {Phys. Rev. B},
   Volume = {89},
   Pages = {085116},
   Year = {2014},
   Month = {February},
   url = {http://arxiv.org/pdf/1310.4773v2.pdf},
   Doi = {10.1103/PhysRevB.89.085116},
   Key = {fds225584}
}

@article{fds303599,
   Author = {Liu, DE and Zheng, H and Finkelstein, G and Baranger,
             HU},
   Title = {Tunable quantum phase transitions in a resonant level
             coupled to two dissipative baths},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {89},
   Number = {8},
   Pages = {085116},
   Year = {2014},
   Month = {February},
   url = {http://arxiv.org/abs/1310.4773v2},
   Abstract = {We study tunneling through a resonant level connected to two
             dissipative bosonic baths: one is the resistive environment
             of the source and drain leads, while the second comes from
             coupling to potential fluctuations on a resistive gate. We
             show that several quantum phase transitions (QPT) occur in
             such a model, transitions which emulate those found in
             interacting systems such as Luttinger liquids or Kondo
             systems. We first use bosonization to map this dissipative
             resonant level model to a resonant level in a Luttinger
             liquid, one with, curiously, two interaction parameters.
             Drawing on methods for analyzing Luttinger liquids at both
             weak and strong coupling, we obtain the phase diagram. For
             strong dissipation, a Berezinsky-Kosterlitz-Thouless QPT
             separates strong-coupling and weak-coupling (charge
             localized) phases. In the source-drain symmetric case, all
             relevant backscattering processes disappear at strong
             coupling, leading to perfect transmission at zero
             temperature. In fact, a QPT occurs as a function of the
             coupling asymmetry or energy of the resonant level: the two
             phases are (i) the system is cut into two disconnected
             pieces (zero transmission), or (ii) the system is a single
             connected piece with perfect transmission, except for a
             disconnected fractional degree of freedom. The latter arises
             from the competition between the two fermionic leads (source
             and drain), as in the two-channel Kondo effect.},
   Doi = {10.1103/PhysRevB.89.085116},
   Key = {fds303599}
}

@booklet{Aleiner95,
   Author = {Aleiner, IL and Baranger, HU and Glazman, LI},
   Title = {Tunneling into a Two-Dimensional Electron Liquid in a Weak
             Magnetic Field.},
   Journal = {Physical Review Letters},
   Volume = {74},
   Number = {17},
   Pages = {3435-3438},
   Year = {1995},
   Month = {April},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10058200},
   Doi = {10.1103/PhysRevLett.74.3435},
   Key = {Aleiner95}
}

@article{matveev:1034,
   Author = {Matveev, KA and Glazman, LI and Baranger, HU},
   Title = {Tunneling spectroscopy of quantum charge fluctuations in the
             Coulomb blockade.},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {53},
   Number = {3},
   Pages = {1034-1037},
   Publisher = {APS},
   Year = {1996},
   Month = {January},
   ISSN = {0163-1829},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/9983548},
   Keywords = {COULOMB EXCITATION; ELECTRIC CONDUCTIVITY; ELECTRONIC
             STRUCTURE; FLUCTUATIONS; GROUND STATES; TEMPERATURE
             DEPENDENCE; TUNNEL EFFECT; ELECTRON CHARGE; QUANTUM
             DOTS},
   Key = {matveev:1034}
}

@article{Gleb10_kondobox,
   Author = {Bomze, Y and Borzenets, I and Mebrahtu, H and Makarovski, A and Baranger, HU and Finkelstein, G},
   Title = {Two-stage Kondo effect and Kondo-box level spectroscopy in a
             carbon nanotube},
   Journal = {Physical Review B - Condensed Matter and Materials
             Physics},
   Volume = {82},
   Number = {16},
   Pages = {161411(R)},
   Year = {2010},
   ISSN = {1098-0121},
   url = {http://hdl.handle.net/10161/4257 Duke open
             access},
   Abstract = {The concept of the "Kondo box" describes a single spin,
             antiferromagnetically coupled to a quantum dot with a finite
             level spacing. Here, a Kondo box is formed in a carbon
             nanotube interacting with a localized electron. We
             investigate the spins of its first few eigenstates and
             compare them to a recent theory. In an "open" Kondo-box,
             strongly coupled to the leads, we observe a nonmonotonic
             temperature dependence of the nanotube conductance, which
             results from a competition between the Kondo-box singlet and
             the "conventional" Kondo state that couples the nanotube to
             the leads. © 2010 The American Physical
             Society.},
   Doi = {10.1103/PhysRevB.82.161411},
   Key = {Gleb10_kondobox}
}

@article{Huaixiu10_1TLS,
   Author = {Zheng, H and Gauthier, DJ and Baranger, HU},
   Title = {Waveguide QED: Many-body bound-state effects in coherent and
             Fock-state scattering from a two-level system},
   Journal = {Physical Review A - Atomic, Molecular, and Optical
             Physics},
   Volume = {82},
   Number = {6},
   Pages = {063816},
   Year = {2010},
   ISSN = {1050-2947},
   url = {http://hdl.handle.net/10161/8974 Duke open
             access},
   Abstract = {Strong coupling between a two-level system (TLS) and bosonic
             modes produces dramatic quantum optics effects. We consider
             a one-dimensional continuum of bosons coupled to a single
             localized TLS, a system which may be realized in a variety
             of plasmonic, photonic, or electronic contexts. We present
             the exact many-body scattering eigenstate obtained by
             imposing open boundary conditions. Multiphoton bound states
             appear in the scattering of two or more photons due to the
             coupling between the photons and the TLS. Such bound states
             are shown to have a large effect on scattering of both Fock-
             and coherent-state wave packets, especially in the
             intermediate coupling-strength regime. We compare the
             statistics of the transmitted light with a coherent state
             having the same mean photon number: as the interaction
             strength increases, the one-photon probability is suppressed
             rapidly, and the two- and three-photon probabilities are
             greatly enhanced due to the many-body bound states. This
             results in non-Poissonian light. © 2010 The American
             Physical Society.},
   Doi = {10.1103/PhysRevA.82.063816},
   Key = {Huaixiu10_1TLS}
}

@article{fds245041,
   Author = {Fang, Y-LL and Baranger, HU},
   Title = {Waveguide QED: Power spectra and correlations of two photons
             scattered off multiple distant qubits and a
             mirror},
   Journal = {Physical Review A - Atomic, Molecular, and Optical
             Physics},
   Volume = {91},
   Number = {5},
   Year = {2015},
   Month = {May},
   ISSN = {1050-2947},
   url = {http://dx.doi.org/10.1103/PhysRevA.91.053845},
   Doi = {10.1103/PhysRevA.91.053845},
   Key = {fds245041}
}

@article{fds221118,
   Author = {H. Zheng and D. J. Gauthier and H. U. Baranger},
   Title = {Waveguide-QED-Based Photonic Quantum Computation},
   Journal = {Phys. Rev. Lett.},
   Volume = {111},
   Pages = {090502},
   Year = {2013},
   Month = {August},
   url = {http://www.phy.duke.edu/research/cm/bg/paper/ZhengGB12_photongate.pdf},
   Doi = {10.1103/PhysRevLett.111.090502},
   Key = {fds221118}
}

@article{fds303603,
   Author = {Zheng, H and Gauthier, DJ and Baranger, HU},
   Title = {Waveguide-QED-Based Photonic Quantum Computation},
   Journal = {Phys. Rev. Lett.},
   Volume = {111},
   Pages = {090502},
   Year = {2012},
   Month = {November},
   url = {http://arxiv.org/abs/1211.1711v3},
   Abstract = {We propose a new scheme for quantum computation using flying
             qubits--propagating photons in a one-dimensional
             waveguide--interacting with matter qubits. Photon-photon
             interactions are mediated by the coupling to a three- or
             four-level system, based on which photon-photon \pi-phase
             gates (Controlled-NOT) can be implemented for universal
             quantum computation. We show that high gate fidelity is
             possible given recent dramatic experimental progress in
             superconducting circuits and photonic-crystal waveguides.
             The proposed system can be an important building block for
             future on-chip quantum networks.},
   Doi = {10.1103/PhysRevLett.111.090502},
   Key = {fds303603}
}

@booklet{Baranger93,
   Author = {Baranger, HU and Jalabert, RA and Stone, AD},
   Title = {Weak localization and integrability in ballistic
             cavities.},
   Journal = {Physical Review Letters},
   Volume = {70},
   Number = {25},
   Pages = {3876-3879},
   Year = {1993},
   Month = {June},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10053988},
   Doi = {10.1103/PhysRevLett.70.3876},
   Key = {Baranger93}
}

@article{chang:2111,
   Author = {Chang, AM and Baranger, HU and Pfeiffer, LN and West,
             KW},
   Title = {Weak localization in chaotic versus nonchaotic cavities: A
             striking difference in the line shape.},
   Journal = {Physical Review Letters},
   Volume = {73},
   Number = {15},
   Pages = {2111-2114},
   Publisher = {APS},
   Year = {1994},
   Month = {October},
   url = {http://www.ncbi.nlm.nih.gov/pubmed/10056974},
   Keywords = {TRANSPORT PROCESSES; CHAOTIC SYSTEMS; SCATTERING; CAVITY
             RESONATORS; MAGNETORESISTANCE; AHARONOV – BOHM EFFECT;
             QUANTUM WELLS; COHERENCE LENGTH},
   Doi = {10.1103/PhysRevLett.73.2111},
   Key = {chang:2111}
}

@booklet{Chang94,
   Author = {A. M. Chang and H. U. Baranger and L. N. Pfeiffer and K. W.
             West},
   Title = {Weak-localization in chaotic versus nonchaotic cavities - a
             striking difference in the line-shape},
   Journal = {Physical Review Letters},
   Volume = {73},
   Number = {15},
   Pages = {2111 -- 2114},
   Year = {1994},
   Month = {October},
   Key = {Chang94}
}

@booklet{Ullmo99,
   Author = {Ullmo, D and Baranger, HU},
   Title = {Wireless propagation in buildings: a statistical scattering
             approach},
   Journal = {IEEE Transactions on Vehicular Technology},
   Volume = {48},
   Number = {3},
   Pages = {947-955},
   Year = {1999},
   ISSN = {0018-9545},
   url = {http://dx.doi.org/10.1109/25.765025},
   Abstract = {A new approach to the modeling of wireless propagation in
             buildings is introduced. We treat the scattering by walls
             and local clutter probabilistically through either a
             relaxation-time approximation in a Boltzmann equation or by
             using a diffusion equation. The result is a range of models
             in which one can vary the tradeoff between the complexity of
             the building description and the accuracy of the prediction.
             The two limits of this range are ray tracing at the most
             accurate end and a simple decay law at the most simple. By
             comparing results for two of these new models with
             measurements, we conclude that a reasonably accurate
             description of propagation can be obtained with a relatively
             simple model. The most effective way to use the models is by
             combining them with a few measurements through a sampling
             technique.},
   Doi = {10.1109/25.765025},
   Key = {Ullmo99}
}

@article{fds303601,
   Author = {Mehta, AC and Umrigar, CJ and Meyer, JS and Baranger,
             HU},
   Title = {Zigzag Phase Transition in Quantum Wires},
   Journal = {Phys. Rev. Lett.},
   Volume = {110},
   Pages = {246802},
   Year = {2013},
   Month = {February},
   url = {http://arxiv.org/abs/1302.5429v2},
   Abstract = {We study the quantum phase transition of interacting
             electrons in quantum wires from a one-dimensional (1D)
             linear configuration to a quasi-1D zigzag arrangement using
             quantum Monte Carlo methods. As the density increases from
             its lowest values, first, the electrons form a linear Wigner
             crystal; then, the symmetry about the axis of the wire is
             broken as the electrons order in a quasi-1D zigzag phase;
             and, finally, the electrons form a disordered liquid-like
             phase. We show that the linear to zigzag phase transition is
             not destroyed by the strong quantum fluctuations present in
             narrow wires; it has characteristics which are qualitatively
             different from the classical transition.},
   Doi = {10.1103/PhysRevLett.110.246802},
   Key = {fds303601}
}


%% Papers Submitted   
@article{Lee06_disordsuper,
   Author = {J.-W. Lee and S. Chandrasekharan and H. U.
             Baranger},
   Title = {Disorder Induced Superconductivity of Hard-Core Bosons in
             Two Dimensions},
   Journal = {submitted to Phys. Rev. B},
   Year = {2007},
   Key = {Lee06_disordsuper}
}