13 papers
Quantum Mpemba effect for operators in open systems
Pitambar Bagui, Bijay Kumar Agarwalla
The quantum Mpemba effect concerns with anomalous relaxation of quantum states that evolves either under unitary or non-unitary dynamics. In the context of open quantum systems, wh…
Principal component analysis of wavefunction snapshots in non-equilibrium dynamics
Dharmesh Yadav, Devendra Singh Bhakuni, Bijay Kumar Agarwalla
We study non-equilibrium quantum dynamics by performing principal component analysis on the data sets of wavefunction snapshots. We show that a specific transformation of the data…
Measurement induced faster symmetry restoration in quantum trajectories
Katha Ganguly, Bijay Kumar Agarwalla
Continuous measurement of quantum systems provides a standard route to quantum trajectories through the successive acquisition of information which further results in measurement b…
Detection of Mpemba effect through good observables in open quantum systems
Pitambar Bagui, Arijit Chatterjee, Bijay Kumar Agarwalla
The Mpemba effect refers to the anomalous relaxation of a quantum state that, despite being initially farther from equilibrium, relaxes faster than a closer counterpart. Detecting…
Full counting statistics for boundary driven transport in presence of correlated gain and loss channels
Katha Ganguly, Bijay Kumar Agarwalla
One of the major advances of quantum technology is the engineering of complex quantum channels in lattice systems that paves the way for a variety of novel non-equilibrium phenomen…
Dynamics of number entropy for free fermionic systems in presence of defects and stochastic processes
Atharva Naik, Bijay Kumar Agarwalla, Manas Kulkarni
We investigate the dynamics of number entropy in a chain of free fermions subjected to both defects and stochastic processes. For a special class of defects, namely conformal defec…