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 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

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, Jan. 2010. Scopus, doi:10.1007/JHEP12(2010)021. Full Text

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

Chandrasekharan, S., et al. “Rotor spectra, berry phases, and monopole fields: From antiferromagnets to QCD.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 78, no. 7, Oct. 2008. Scopus, doi:10.1103/PhysRevD.78.077901. Full Text

Cecile, D. J., and S. Chandrasekharan. “Role of the σ resonance in determining the convergence of chiral perturbation theory.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 77, no. 9, May 2008. Scopus, doi:10.1103/PhysRevD.77.091501. Full Text

Cecile, D. J., and S. Chandrasekharan. “Absence of vortex condensation in a two dimensional fermionic XY model.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 77, no. 5, Mar. 2008. Scopus, doi:10.1103/PhysRevD.77.054502. Full Text

Jiang, F. J., et al. “From an antiferromagnet to a valence bond solid: Evidence for a first-order phase transition.” Journal of Statistical Mechanics: Theory and Experiment, vol. 2008, no. 2, Feb. 2008. Scopus, doi:10.1088/1742-5468/2008/02/P02009. Full Text

Cecile, D. J., and S. Chandrasekharan. “Modeling pion physics in the -regime of two-flavor QCD using strong coupling lattice QED.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 77, no. 1, Jan. 2008. Scopus, doi:10.1103/PhysRevD.77.014506. Full Text

Chandrasekharan, S. “A new computational approach to lattice quantum field theories.” Proceedings of Science, vol. 66, Jan. 2008.

Cecile, D. J., and Shailesh Chandrasekharan. “Sigma-resonance and convergence of chiral perturbation theory.” Pos, vol. LATTICE2008, 2008.

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