3 papers
quant-ph2023
Multiple quantum Mpemba effect: exceptional points and oscillations
Amit Kumar Chatterjee, Satoshi Takada, Hisao Hayakawa
We explore the role of exceptional points and complex eigenvalues on the occurrence of the quantum Mpemba effect. To this end, we study a two-level driven dissipative system subjec…
cond-mat.stat-mech2020
Spatio-temporal spread of perturbations in a driven dissipative Duffing chain: an OTOC approach
Amit Kumar Chatterjee, Anupam Kundu, Manas Kulkarni
Out-of-time-ordered correlators (OTOC) have been extensively used as a major tool for exploring quantum chaos and also recently, there has been a classical analogue. Studies have b…
cond-mat.stat-mech2018
Assisted exchange models in one dimension
Amit Kumar Chatterjee, P. K. Mohanty
We introduce an assisted exchange model (AEM) on a one dimensional periodic lattice with (K+1) different species of hard core particles, where the exchange rate depends on the pair…