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 of these theories 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 has 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. Recently he is exploring how one can use quantum computers to solve quantum field theories. 

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

Kaul, R. K., et al. “Mesoscopic Kondo problem.” Europhysics Letters, vol. 71, no. 6, Sept. 2005, pp. 973–79. Scopus, doi:10.1209/epl/i2005-10184-1. Full Text

Lee, J. W., et al. “Quantum Monte Carlo study of disordered fermions.” Physical Review B  Condensed Matter and Materials Physics, vol. 72, no. 2, July 2005. Scopus, doi:10.1103/PhysRevB.72.024525. Full Text

Yoo, Jaebeom, et al. “Multilevel algorithm for quantum-impurity models.Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, vol. 71, no. 3 Pt 2B, Mar. 2005, p. 036708. Epmc, doi:10.1103/physreve.71.036708. Full Text

Chandrasekharan, Shailesh, and Costas G. Strouthos. “Failure of mean field theory at large N.Physical Review Letters, vol. 94, no. 6, Feb. 2005, p. 061601. Epmc, doi:10.1103/physrevlett.94.061601. Full Text

Yoo, J., et al. “Cluster algorithms for quantum impurity models and mesoscopic Kondo physics.” Physical Review B  Condensed Matter and Materials Physics, vol. 71, no. 20, Jan. 2005. Scopus, doi:10.1103/PhysRevB.71.201309. Full Text

Chandrasekharan, S., and F. J. Jiang. “Chiral limit of 2-color QCD at strong couplings.” Proceedings of Science, vol. 20, Jan. 2005.

Chandrasekharan, S., and U. J. Wiese. “An introduction to chiral symmetry on the lattice.” Progress in Particle and Nuclear Physics, vol. 53, no. 2, Oct. 2004, pp. 373–418. Scopus, doi:10.1016/j.ppnp.2004.05.003. Full Text

Brower, R., et al. “D-theory: Field quantization by dimensional reduction of discrete variables.” Nuclear Physics B, vol. 693, no. 1–3, Aug. 2004, pp. 149–75. Scopus, doi:10.1016/j.nuclphysb.2004.06.007. Full Text

Chandrasekharan, S., et al. “Lattice theories with nonlinearly realized chiral symmetry.” Nuclear Physics B  Proceedings Supplements, vol. 129–130, Jan. 2004, pp. 507–09. Scopus, doi:10.1016/S0920-5632(03)02624-0. Full Text

Chandrasekharan, S. “Chiral and critical in strong coupling QCD.” Nuclear Physics B  Proceedings Supplements, vol. 129–130, Jan. 2004, pp. 578–80. Scopus, doi:10.1016/S0920-5632(03)02647-1. Full Text