Shailesh Chandrasekharan

Shailesh Chandrasekharan

Professor of Physics

Office Location: 
Science Drive, 253, Physics/Math Bldg., Durham, NC 27708
Front Office Address: 
Box 90305, Durham, NC 27708-0305
(919) 660-2462


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.

Education & Training

  • Ph.D., Columbia University 1996

  • M.Phil., Columbia University 1994

  • M.A., Columbia University 1992

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

Chandrasekharan, S, and Jiang, FJ. "Phase diagram of two-color lattice QCD in the chiral limit." Physical Review D Particles, Fields, Gravitation and Cosmology 74.1 (July 14, 2006). Full Text

Kaul, RK, Zaránd, G, Chandrasekharan, S, Ullmo, D, and Baranger, HU. "Spectroscopy of the Kondo problem in a box." Phys Rev Lett 96.17 (May 5, 2006): 176802-. Full Text

Chandrasekharan, S, and Mehta, AC. "Effects of the anomaly on the QCD chiral phase transition." Proceedings of Science 32 (January 1, 2006).

Chandrasekharan, S. "New approaches to strong coupling lattice QCD." Int. J. Mod. Phys. B20 (2006): 2714-2723. (Academic Article)

Yoo, J, Chandrasekharan, S, Kaul, RK, Ullmo, D, and Baranger, HU. "On the sign problem in the Hirsch-Fye algorithm for impurity problems." Journal of Physics A: Mathematical and General 38.48 (December 2, 2005): 10307-10310. Full Text

Kaul, RK, Ullmo, D, Chandrasekharan, S, and Baranger, HU. "Mesoscopic Kondo problem." Europhysics Letters 71.6 (September 15, 2005): 973-979. Full Text

Lee, JW, Chandrasekharan, S, and Baranger, HU. "Quantum Monte Carlo study of disordered fermions." Physical Review B Condensed Matter and Materials Physics 72.2 (July 1, 2005). Full Text

Yoo, J, Chandrasekharan, S, and Baranger, HU. "Multilevel algorithm for quantum-impurity models." Phys Rev E Stat Nonlin Soft Matter Phys 71.3 Pt 2B (March 2005): 036708-. Full Text

Chandrasekharan, S, and Strouthos, CG. "Failure of mean field theory at large N." Phys Rev Lett 94.6 (February 18, 2005): 061601-. Full Text

Yoo, J, Chandrasekharan, S, Kaul, RK, Ullmo, D, and Baranger, HU. "Cluster algorithms for quantum impurity models and mesoscopic Kondo physics." Physical Review B Condensed Matter and Materials Physics 71.20 (January 1, 2005). Full Text