3 papers
cond-mat.stat-mech2021
Non-adiabatic dynamics across a first order quantum phase transition: Quantized bubble nucleation
Aritra Sinha, Titas Chanda, Jacek Dziarmaga
Metastability is a quintessential feature of first order quantum phase transitions, which is lost either by dynamical instability or by nucleating bubbles of a true vacuum through…
quant-ph2019
Sonic horizons and causality in the phase transition dynamics
Debasis Sadhukhan, Aritra Sinha, Anna Francuz +4
A system gradually driven through a symmetry-breaking phase transition is subject to the Kibble-Zurek mechanism (KZM). As a consequence of the critical slowing down, its state cann…
cond-mat.stat-mech2018
Kibble-Zurek mechanism with a single particle: dynamics of the localization-delocalization transition in the Aubry-André model
Aritra Sinha, Marek M. Rams, Jacek Dziarmaga
The Aubry-André 1D lattice model describes a particle hopping in a pseudo-random potential. Depending on its strength , all eigenstates are either localized () or delocaliz…