3 papers
cond-mat.stat-mech2020
Locating quantum critical points with Kibble-Zurek quenches
Michał Białończyk, Bogdan Damski
We describe a scheme for finding quantum critical points based on studies of a non-equilibrium susceptibility during finite-rate quenches taking the system from one phase to anothe…
cond-mat.stat-mech2019
Dynamics of longitudinal magnetization in transverse-field quantum Ising model: from symmetry-breaking gap to Kibble-Zurek mechanism
Michał Białończyk, Bogdan Damski
We show that the symmetry-breaking gap of the quantum Ising model in the transverse field can be extracted from free evolution of the longitudinal magnetization taking place after…
quant-ph2018
One-half of the Kibble-Zurek quench followed by free evolution
Michał Białończyk, Bogdan Damski
We drive the one-dimensional quantum Ising chain in the transverse field from the paramagnetic phase to the critical point and study its free evolution there. We analyze excitation…