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
Phone: 
(919) 660-2462

Overview

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. “Fermion bag solutions to sign problems.” Proceedings of Science, vol. Part F130497, Jan. 2012.

Chandrasekharan, S., and A. Li. “Fermion bag approach to the sign problem in strongly coupled lattice QED with Wilson fermions.” Journal of High Energy Physics, vol. 2011, no. 1, Sept. 2011. Scopus, doi:10.1007/JHEP01(2011)018. Full Text

Chandrasekharan, S., and A. Li. “The generalized fermion-bag approach.” Proceedings of Science, vol. 139, Jan. 2011.

Chandrasekharan, S., and A. Li. “Anomaly and a QCD-like phase diagram with massive bosonic baryons.” Journal of High Energy Physics, vol. 2010, no. 12, Dec. 2010. Scopus, doi:10.1007/JHEP12(2010)021. Full Text

Liu, Dong E., et al. “Quantum phase transition and emergent symmetry in a quadruple quantum dot system..” Physical Review Letters, vol. 105, no. 25, Dec. 2010. Epmc, doi:10.1103/physrevlett.105.256801. Full Text

Liu, D. E., et al. “Conductance of quantum impurity models from quantum monte carlo.” Physical Review B  Condensed Matter and Materials Physics, vol. 82, no. 16, Oct. 2010. Scopus, doi:10.1103/PhysRevB.82.165447. Full Text Open Access Copy

Chandrasekharan, S. “Fermion bag approach to lattice field theories.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 82, no. 2, July 2010. Scopus, doi:10.1103/PhysRevD.82.025007. Full Text Open Access Copy

Banerjee, D., and S. Chandrasekharan. “Finite size effects in the presence of a chemical potential: A study in the classical nonlinear O(2) sigma model.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 81, no. 12, June 2010. Scopus, doi:10.1103/PhysRevD.81.125007. Full Text Open Access Copy

Podolsky, D., et al. “Phase transitions of S=1 spinor condensates in an optical lattice.” Physical Review B  Condensed Matter and Materials Physics, vol. 80, no. 21, Dec. 2009. Scopus, doi:10.1103/PhysRevB.80.214513. Full Text Open Access Copy

Kaul, R. K., et al. “Ground state and excitations of quantum dots with magnetic impurities.” Physical Review B  Condensed Matter and Materials Physics, vol. 80, no. 3, Aug. 2009. Scopus, doi:10.1103/PhysRevB.80.035318. Full Text

Pages