14 papers
Boundary quenches in (1+1)-dimensional conformal field theory
Michele Fossati, Colin Rylands, Eytan Grosfeld +2
We investigate a class of local quantum quenches in which the conformal boundary condition of a (1+1)-dimensional conformal field theory is abruptly changed. We derive a remarkably…
Asymmetry dynamics and nonequilibrium symmetry-breaking phase transitions
Liv Hammer, Colin Rylands, Federico Carollo
In classical settings, the Mpemba effect occurs when a hotter system cools faster than an initially colder one. In quantum systems, this effect can be reinterpreted exploiting the…
Initial State Memory in Finite Random Brickwork Circuits
Jakob Bannister, Katja Klobas, Colin Rylands +1
We ask under what conditions a finite brickwork circuit of random gates retains local information about the initial state. To answer this question we measure the averaged Frobenius…
Entanglement evolution from entangled multipodal states
Konstantinos Chalas, Pasquale Calabrese, Colin Rylands
In a periodic lattice system an entangled antipodal pair state, otherwise known as a crosscap state, is a simple two site product state in which spins at antipodal sites are prepar…
A simpler probe of the quantum Mpemba effect in closed systems
Filiberto Ares, Colin Rylands, Pasquale Calabrese
We study the local relaxation of closed quantum systems through the relative entropy between the reduced density matrix and its long time limit. We show, using analytic arguments c…
Entanglement in dual unitary quantum circuits with impurities
Shachar Fraenkel, Colin Rylands
Bipartite entanglement entropy is one of the most useful characterizations of universal properties in a many-body quantum system. Far from equilibrium, there exist two highly effec…