# Shailesh Chandrasekharan

## Associate Professor

## Details

** Fermion bag solutions to some sign problems in four-fermion field theories
**

Phys. Rev. D
(2012)

** Fermion Bags, Duality, and the Three Dimensional Massless Lattice Thirring Model
**

Phys. Rev. Lett.
(2012)

** The generalized fermion bag approach
**

Proceedings of Science
(2011)

** Partition Functions of Strongly Correlated Electron Systems as 'Fermionants'.
**

arXiv:1108.2461
(2011)

** Fermion bag approach to the sign problem in strongly coupled lattice QED with Wilson fermions
**

Journal of High Energy Physics
(2011)

** Fermion bag approach to lattice field theories
**

Physical Review D
(2010)

** Conductance of quantum impurity models from quantum Monte Carlo
**

Physical Review B
(2010)

** Quantum Phase Transition and Dynamically Enhanced Symmetry in Quadruple Quantum Dot System
**

Physical Review Letters
(2010)

** Anomaly and a QCD-like phase diagram with massive bosonic baryons
**

Journal of High Energy Physics
(2010)

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:**

Doctor of Philosophy - Columbia

M.Phil. - Columbia University

M.A. - Columbia University

B. Tech - Indian Institute of Technology, Madras, India

B.S.E.E. - Indian Institute of Technology (India)

**2003**Outstanding Junior Investigator, Department of Energy, Division of Nuclear Physics