Adway Kumar Das
- Research Scholar
Course : Ph.D. (INSPIRE)
- Research Guide:
-
Anandamohan Ghosh
-
Location: DPS Theory 3, N-116, DPS, IISER Kolkata
Email: akd19rs062[ at ]iiserkol.ac.in
Tel: 9432582679
Research group
Research areas
- Quantum Chaos, Nonequilibrium dynamics, Thermalization, Random Matrix Theory
We study the statistical properties of energy levels and states of different model Hamiltonians and physical systems. From the energy levels, we identify the integrable-chaos transition by studying short-range correlations. Also from the long-range energy correlations we identify critical energy scales, e.g. Thouless energy, Heisenberg energy. For the energy states, we identify the critical points where localization-delocalization transition happens and ergodicity breaks down and quantify the scaling of relevant fluctuations. We also study thermalization and dynamical aspects of a quantum mechanical system.
- BS-MS (Physics), IISER Kolkata, 2019
- Fulbright-Nehru Doctoral Research Fellowship, August 2023 - May 2024
- 2nd best MS thesis, 2019, Department of Physical Sciences, IISER Kolkata
- “Absence of Mobility Edge in Short-range Uncorrelated Disordered Model: Coexistence of Localized and Extended States”, Das, A. K., Ghosh, A., Khaymovich, I. M., Phys. Rev. Lett. 131, 166401, 2023
- “Proposal for many-body quantum chaos detection”, Das, A. K. et al, Phys. Rev. Research 7, 013181, 2025
- “Nonergodic extended states in the β ensemble”, Das, A. K., Ghosh, A., Phys. Rev. E 105, 054121, 2022
- “Robust non-ergodicity of ground state in the β ensemble”, Das, A. K., Ghosh, A., Khaymovich, I. M., Phys. Rev. B 109, 064206, 2024
- “Transport in Deformed Centrosymmetric Networks”, Das, A. K., Ghosh, A., Phys. Rev. E 106, 064112, 2022