CNCS Center for Nonlinear and Complex Systems
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Stephen W. Teitsworth, Associate Professor of Physics and CNCS: Center for nonlinear and complex systems and Director of Graduate Studies

Stephen W. Teitsworth

Prof. Stephen W. Teitsworth's research centers on experimental, computational, and theoretical studies of deterministic and stochastic nonlinear electronic transport in nanoscale systems. Three particular areas of current interest are: 1) stochastic nonlinear electronic transport phenomena in semiconductor superlattices and tunnel diode arrays; 2) complex bifurcations associated with the deterministic dynamics of electronic transport in negative differential resistance systems; and 3) strategies for stabilizing negative differential resistance systems against the formation of space-charge waves.

Contact Info:
Office Location:  089 Physics Bldg, Durham, NC 27708
Office Phone:  (919) 660-2560
Email Address: send me a message

Teaching (Fall 2017):

  • PHYSICS 137S.01, ENERGY IN THE 21ST CENTURY Synopsis
    Physics 299, TuTh 04:40 PM-05:55 PM
Education:

Ph.D.Harvard University1986
A.M.Harvard University1981
BSStanford University1979
Specialties:

Experimental condensed matter physics
Nanoscale/microscale computing systems
Nonlinear dynamics and complex systems
Nanophysics
Research Interests: Experimental Condensed Matter Physics

Prof. Stephen W. Teitsworth's current research centers on electronic transport and optoelectronic processes in semiconductor microstructures and nanostructures. Three areas of particular interest are: 1) nonlinear electronic transport in semiconductor superlattices; 2) theoretical and experimental studies of chaotic dynamics associated with nonlinear space charge waves in patterned and bulk semiconductors; 3) optical properties of semiconductor quantum wells, especially photon-plasmon effects in structures that incorporate metallic nanoarrays.

Keywords:

Aluminum • Amplifiers, Electronic • Arsenic • Arsenicals • Electronics • Gallium • Gallium arsenide • Kinetics • Models, Theoretical • Oscillometry • Photoluminescence • Quantum wells • Semiconductors

Current Ph.D. Students   (Former Students)

    Postdocs Mentored

    • Yuriy Bomze (2010 - 2011)  
    Recent Publications   (More Publications)

    1. Ghanta, A; Neu, JC; Teitsworth, S, Fluctuation loops in noise-driven linear dynamical systems, Physical review. E, vol. 95 no. 3 (March, 2017) [doi]
    2. Dannenberg, PH; Neu, JC; Teitsworth, SW, Steering most probable escape paths by varying relative noise intensities., Physical Review Letters, vol. 113 no. 2 (July, 2014), pp. 020601, American Physical Society, ISSN 0031-9007 [doi]  [abs]
    3. Bomze, Y; Hey, R; Grahn, HT; Teitsworth, SW, Noise-induced current switching in semiconductor superlattices: observation of nonexponential kinetics in a high-dimensional system., Physical Review Letters, vol. 109 no. 2 (July, 2012), pp. 026801 [23030192], [doi]  [abs]
    4. M. Heymann, S. W. Teitsworth, and J. Mattingly, Rare transition events in non-equilibrium systems with state-dependent noise: application to stochastic current switching in semiconductor superlattices (Preprint, 2012)  [abs]
    5. Bomze, Y; Hey, R; Grahn, HT; Teitsworth, SW, Noise-Induced Current Switching in Semiconductor Superlattices: Observation of Nonexponential Kinetics in a High-Dimensional System, Physical Review Letters, vol. 109 no. 026801 (2012), pp. 4, American Physical Society [23030192], [doi]  [abs] [author's comments]