**Office Location:** Science Drive, 253, Physics/math Bldg., Durham, NC 27708**Office Phone:** (919) 660-2462**Email Address:** sch@phy.duke.edu**Web Page:** http://www.phy.duke.edu/~sch/

**Specialties:**

Theoretical nuclear physics

Theoretical particle physics and string theory

Theoretical condensed matter physics

**Education:**

Ph.D., Columbia University, 1996

Doctor of Philosophy, Columbia, 1995

M.Phil., Columbia University, 1994

M.A., Columbia University, 1992

B. Tech, Indian Institute of Technology, Madras, India, 1989

B.S.E.E., Indian Institute of Technology (India), 1989

**Research Categories:** *Theoretical Nuclear and Particle Physics*

**Current projects:**
Quantum Critical Behavior in Fermion Systems, Using the generalized fermion bag algorithm, Applications to Graphene and Unitary Fermi Gas.

**Research Description:** Prof. Chandrasekharan is interested in understanding quantum field theories non-perturbatively from first principles calculations. His research focuses on lattice formulations with emphasis on strongly correlated fermionic systems of interest in both condensed matter and nuclear physics. He develops novel Monte-Carlo algorithms to study these problems. He is particularly excited about solutions to the notoriously difficult sign problem that haunts quantum systems containing fermions and gauge fields. He recently proposed an idea called the fermion bag approach, using which he has been able to solve numerous sign problems that seemed unsolvable earlier. Using various algorithmic advances over the past decade, he is interested in understanding the properties of quantum critical points containing interacting fermions. Some of his recent publications can be found here.

**Areas of Interest:**

Quantum Field Theories, Lattice formulations,

Critical Phenomena and Monte Carlo Algorithms.

**Teaching (Spring 2017):**

- Physics 764.01,
*Quantum mechanics*Synopsis- Physics 299, TuTh 10:05 AM-11:20 AM

**Recent Publications**
(More Publications)
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- Ayyar, V; Chandrasekharan, S,
*Massive fermions without fermion bilinear condensates*, Physical Review D - Particles, Fields, Gravitation, and Cosmology, vol. 91 no. 6 (March, 2015) [doi] . - Zou, H; Liu, Y; Lai, C-Y; Unmuth-Yockey, J; Yang, L-P; Bazavov, A; Xie, ZY; Xiang, T; Chandrasekharan, S; Tsai, S-W; Meurice, Y,
*Progress towards quantum simulating the classical model*, Physical Review A - Atomic, Molecular, and Optical Physics, vol. 90 no. 6 (December, 2014) [doi] . - V. Ayyar and S. Chandrasekharan,
*Massive fermions without fermion bilinear condensates*, arXiv:1410.6474 (submitted to Phys. Rev. D) (Submitted, October, 2014) [6474] [abs]. - E.F. Huffman and S. Chandrasekharan,
*Solution to sign problems in half-filled spin-polarized electronic systems*, Phys. Rev. (Rapid Communications), vol. B89 (February, 2014), pp. 111101 (arXiv:1311.0034.) [PhysRevB.89.111101], [doi] [abs]. - Haiyuan Zou, Yuzhi Liu, Chen-Yen Lai, J. Unmuth-Yockey, A. Bazavov, Z.Y. Xie, T. Xiang, S. Chandrasekharan, S. -W. Tsai, Y. Meurice,
*Towards quantum computing for the classical O(2) model*, Phys. Rev. A (Accepted, 2014) [5238] [abs].

**Highlight:**

Prof. Chandrasekharan is interested in understanding quantum field theories non-perturbatively from first principles calculations. His research focuses on lattice formulations with emphasis on strongly correlated fermionic systems of interest in condensed matter, particle and nuclear physics. He develops novel Monte-Carlo algorithms to study these problems. He is particularly excited about solutions to the notoriously difficult sign problem that haunts quantum systems containing fermions and gauge fields. He recently proposed an idea called the fermion bag approach, using which he has been able to solve numerous sign problems that seemed unsolvable earlier. Using various algorithmic advances over the past decade, he is interested in understanding the properties of quantum critical points containing interacting fermions. Some of his recent publications can be found here.

**Current Ph.D. Students**(Former Students)

**Postdocs Mentored**- Anyi Li (2009 - 2011)
- Jose A. Hoyos Neto (2007 - 2009)
- Ji-Woo Lee (2003/09-2005/08)
- Jaebeom Yoo (2003/09-2005/08)
- Costas Strouthos (2003/01-2004/01)
- David H. Adams (2001/12-2002/08)
- James C Osborn (1999/09-2001/08)