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Shailesh Chandrasekharan, Associate Professor of Physics


Shailesh Chandrasekharan

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.

Contact Info:
Office Location:  Science Drive, 253, Physics/math Bldg., Durham, NC 27708
Office Phone:  (919) 660-2462
Email Address: send me a message
Web Page:

Teaching (Fall 2017):

    Physics 299, TuTh 01:25 PM-02:40 PM
Teaching (Spring 2018):
    LSRC D243, TuTh 01:25 PM-02:40 PM


Ph.D.Columbia University1996
Doctor of PhilosophyColumbia1995
M.Phil.Columbia University1994
M.A.Columbia University1992
B. TechIndian Institute of Technology, Madras, India1989
B.S.E.E.Indian Institute of Technology (India)1989


Theoretical nuclear physics
Theoretical particle physics and string theory
Theoretical condensed matter physics

Research Interests: Theoretical Nuclear and Particle Physics

Current projects: Strongly Coupled Lattice QCD,, Fermion/Cluster algorithms,, One Dimensional Electron Gas, SU(4) Kondo Problem

Prof. Chandrasekharan is interested in non-perturbative aspects of Quantum Field Theories. His research focuses on Lattice QCD and other strongly correlated fermionic systems. He develops novel Monte-Carlo algorithms to study these problems.

Areas of Interest:

Quantum Field Theories, Lattice formulations,
Critical Phenomena and Monte Carlo Algorithms.


Broken symmetry (Physics) • Critical phenomena (Physics) • Field theory (Physics) • Gauge fields (Physics) • Particles (Nuclear physics) • Phase transformations (Statistical physics) • Quasiparticles (Physics) • Special relativity (Physics) • Statistical physics • Symmetry (Physics) • World line (Physics)

Curriculum Vitae

Current Ph.D. Students   (Former Students)
  • Emilie S. Huffman  
  • Venkitesh P Ayyar  

Postdocs Mentored
  • Anyi Li (2009 - 2011)  
  • Jose A. Hoyos Neto (2007 - 2009)  
  • Ji-Woo Lee (2003/09-2005/08)  
  • Jaebeom Yoo (2003/09-2005/08)  
  • Costas Strouthos (2003/01-2004/01)  
  • David H. Adams (2001/12-2002/08)  
  • James C Osborn (1999/09-2001/08)  

Recent Publications   (More Publications)   (search)

  1. Hann, CT; Huffman, E; Chandrasekharan, S, Solution to the sign problem in a frustrated quantum impurity model, Annals of Physics, vol. 376 (January, 2017), pp. 63-75 [doi]
  2. Huffman, E; Chandrasekharan, S, Solution to sign problems in models of interacting fermions and quantum spins., Physical review. E, vol. 94 no. 4-1 (October, 2016), pp. 043311  [abs]
  3. Ayyar, V; Chandrasekharan, S, Fermion masses through four-fermion condensates, The Journal of High Energy Physics, vol. 2016 no. 10 (October, 2016) [doi]
  4. Huffman, E; Banerjee, D; Chandrasekharan, S; Wiese, U-J, Real-time evolution of strongly coupled fermions driven by dissipation, Annals of Physics, vol. 372 (September, 2016), pp. 309-319 [doi]
  5. Ayyar, V; Chandrasekharan, S, Origin of fermion masses without spontaneous symmetry breaking, Physical Review D, vol. 93 no. 8 (April, 2016) [doi]