My broad research interests lie in areas of statistical mechanics and quantum many-body physics. In particular, I study various non-equilibrium aspects of quantum many-body systems, including the effects of interaction range, disorder, inclusion of non-Hermitian components, and other factors. Recently, I have started exploring the crossroads between non-reciprocal stochastic processes and non-Hermitian quantum mechanics, which often share a common feature: exceptional points, a spectral singularity with no counterpart in traditional Hermitian systems. 

Works: 

7.  "Non-reciprocally interacting Ornstein-Uhlenbeck processes: Exceptional points, Anomalous relaxation, Pseudo-equilibrium and Boundary refrigeration"

S.K. Pal, Shamik Gupta. arXiv.2609.05391  

6.  "Observable- and state-selective prethermalization and bounds on prethermal lifetimes "

C. L. Sriram, S.K. Pal, Lea F. Santos. arXiv:2609.01606  [Submitted]

5.  "Constructing Non-Hermitian Theories with Tunable Exceptional Points and Controlled State Purification"

S.K. Pal, Rupak Majumder, Shamik Gupta. arXiv:2608.05052 [Submitted]

4.  "Fragmented ETH: Prethermalization, Timescales, and Ensemble Inequivalence"

C. L. Sriram, S.K. Pal, Lea F. Santos. arXiv:2607.15350 [Submitted]

3.  "Fragmented eigenstate thermalization versus robust integrability in long-range models"

  S.K. Pal, Lea F. Santos. arXiv:2508.00077  [Submitted]

 2. "Emergent Thermalization Thresholds in Unitary Dynamics of Inhomogeneously Disordered Systems"

PHYSICAL REVIEW E 113, 014205 (2026)

          S.K. Pal, C.L. Sriram, Shamik Gupta. arXiv:2505.11253v1     

1. "Canonical Equilibrium of mean-field $O(n)$ models in presence of random fields"

  PHYSICAL REVIEW E 112, 024104 (2025)

S.K. Pal, Shamik Gupta.  arXiv:2503.09389v2