Dibyendu Roy

Dibyendu's research in theoretical physics is at the interfaces of condensed matter, nonequilibrium statistical mechanics and atomic, molecular & optical (AMO) physics. Currently, he is exploring:

(a) strong light-matter interaction for propagating photons confined in waveguide quantum electrodynamics (WQED) set-ups, and its applications for all-optical devices, (see, D. Roy et al., Rev. Mod. Phys. 89, 021001 (2017)),

(b) the interplay of topology and non-Hermiticity in quantum systems, particularly the role of topology in characterizing nonequilibrium dynamics or vice versa, (see, e.g., V. M. Vyas and D. Roy,  Phys. Rev. B 103, 075441 (2021)),

(c) thermalization and chaos in quantum many-body systems in the presence of disorder and/or driving (see, e.g., D. Roy and T. Prosen, Phys. Rev. E 102, 060202(RC) (2020)), and 

(d) spin noise spectroscopy in ultracold atoms and its potential use in metrology (see, e.g., M. Swar, D. Roy et al., Phys. Rev. Res 3, 043171 (2021)).