Research Interests for Shailesh Chandrasekharan

Research Interests: Theoretical Nuclear and Particle Physics

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 both condensed matter 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.

Recent Papers, Books and Preprints (search)
  1. Liu, H; Bhattacharya, T; Chandrasekharan, S; Gupta, R, Phases of 2D massless QCD with qubit regularization, Physical Review D, vol. 111 no. 9 (May, 2025) [doi][abs] .
  2. Siew, RX; Chandrasekharan, S; Kaul, RK, Transverse field γ -matrix spin chains, Physical Review D, vol. 110 no. 9 (November, 2024), American Physical Society (APS) [doi][abs] .
  3. Chandrasekharan, S; Nguyen, ST; Richardson, TR, Worldline Monte Carlo method for few-body nuclear physics, Physical Review C, vol. 110 no. 2 (August, 2024), American Physical Society (APS) [doi][abs] .
  4. Maiti, S; Banerjee, D; Chandrasekharan, S; Marinkovic, MK, Asymptotic Freedom at the Berezinskii-Kosterlitz-Thouless Transition without Fine-Tuning Using a Qubit Regularization., Physical review letters, vol. 132 no. 4 (January, 2024), pp. 041601, American Physical Society (APS) [doi][abs] .
  5. Liu, H; Bhattacharya, T; Chandrasekharan, S; Gupta, R, Phases of 2d massless QCD with qubit regularization, Physical Review D: Particles, Fields, Gravitation and Cosmology (December, 2023), American Physical Society [doi][abs] .

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