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

Chandrasekharan, S., and J. Osborn. “Solving sign problems with meron algorithms.” Computer Simulation Studies in Condensed Matter Physics Xiii, edited by D. P. Landau et al., vol. 86, SPRINGER-VERLAG BERLIN, Jan. 2001, pp. 28–42.

Chandrasekharan, S., and J. C. Osborn. “Critical behavior of a chiral condensate with a meron cluster algorithm.” Physics Letters, Section B: Nuclear, Elementary Particle and High Energy Physics, vol. 496, no. 1–2, Dec. 2000, pp. 122–28. Scopus, doi:10.1016/S0370-2693(00)01294-6. Full Text

Chandrasekharan, S., et al. “Meron-cluster simulation of a chiral phase transition with staggered fermions.” Nuclear Physics B, vol. 576, no. 1–3, June 2000, pp. 481–500. Scopus, doi:10.1016/S0550-3213(00)00087-0. Full Text

Chandrasekharan, S. “A chiral phase transition using a fermion cluster algorithm.” Chinese Journal of Physics, vol. 38, no. 3, PHYSICAL SOC REPUBLIC CHINA, June 2000, pp. 696–706.

Chandrasekharan, S. “Fermion cluster algorithms.” Nuclear Physics B  Proceedings Supplements, vol. 83–84, no. 1–3, Jan. 2000, pp. 774–76. Scopus, doi:10.1016/s0920-5632(00)00418-7. Full Text

Brower, R., et al. “QCD as a quantum link model.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 60, no. 9, Nov. 1999, pp. 1–14.

Chandrasekharan, S. “Ginsparg-Wilson fermions: A study in the Schwinger model.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 59, no. 9, Mar. 1999. Scopus, doi:10.1103/PhysRevD.59.094502. Full Text

Chandrasekharan, S. “Lattice QCD with Ginsparg-Wilson fermions.” Physical Review D  Particles, Fields, Gravitation and Cosmology, vol. 60, no. 7, Jan. 1999. Scopus, doi:10.1103/PhysRevD.60.074503. Full Text

Bhattacharya, T., et al. “Non-perturbative renormalization constants using Ward identities.” Nuclear Physics B  Proceedings Supplements, vol. 73, no. 1–3, Jan. 1999, pp. 276–78. Scopus, doi:10.1016/S0920-5632(99)85046-4. Full Text

Chandrasekharan, S., and U. J. Wiese. “Meron-cluster solution of fermion sign problems.” Physical Review Letters, vol. 83, no. 15, Jan. 1999, pp. 3116–19. Scopus, doi:10.1103/PhysRevLett.83.3116. Full Text