Entanglement asymmetry and quantum Mpemba effect in two-dimensional free-fermion systems

S Yamashika, F Ares, P Calabrese - Physical Review B, 2024 - APS
The quantum Mpemba effect is the counterintuitive nonequilibrium phenomenon wherein
the dynamic restoration of a broken symmetry occurs more rapidly when the initial state …

Confinement and kink entanglement asymmetry on a quantum Ising chain

BJJ Khor, DM Kürkçüoglu, TJ Hobbs, GN Perdue… - Quantum, 2024 - quantum-journal.org
In this work, we explore the interplay of confinement, string breaking and entanglement
asymmetry on a 1D quantum Ising chain. We consider the evolution of an initial domain wall …

Entanglement asymmetry in the ordered phase of many-body systems: the Ising field theory

L Capizzi, M Mazzoni - Journal of High Energy Physics, 2023 - Springer
A bstract Global symmetries of quantum many-body systems can be spontaneously broken.
Whenever this mechanism happens, the ground state is degenerate and one encounters an …

Entanglement asymmetry study of black hole radiation

F Ares, S Murciano, L Piroli, P Calabrese - Physical Review D, 2024 - APS
Hawking's discovery that black holes can evaporate through radiation emission has posed a
number of questions that with time became fundamental hallmarks for a quantum theory of …

Entanglement asymmetry and quantum Mpemba effect in the XY spin chain

S Murciano, F Ares, I Klich… - Journal of Statistical …, 2024 - iopscience.iop.org
Entanglement asymmetry is a quantity recently introduced to measure how much a
symmetry is broken in a part of an extended quantum system. It has been employed to …

A universal formula for the entanglement asymmetry of matrix product states

L Capizzi, V Vitale - Journal of Physics A: Mathematical and …, 2024 - iopscience.iop.org
Symmetry breaking is a fundamental concept in understanding quantum phases of matter,
studied so far mostly through the lens of local order parameters. Recently, a new …

Non-equilibrium entanglement asymmetry for discrete groups: the example of the XY spin chain

F Ferro, F Ares, P Calabrese - Journal of Statistical Mechanics …, 2024 - iopscience.iop.org
Entanglement asymmetry is a novel quantity that, using entanglement methods, measures
how much a symmetry is broken in a part of an extended quantum system. So far, it has only …

Charge-resolved entanglement in the presence of topological defects

DX Horváth, S Fraenkel, S Scopa, C Rylands - Physical Review B, 2023 - APS
Topological excitations or defects such as solitons are ubiquitous throughout physics,
supporting numerous interesting phenomena like zero-energy modes with exotic statistics …

Rényi entanglement asymmetry in ()-dimensional conformal field theories

M Chen, HH Chen - Physical Review D, 2024 - APS
In this paper, we consider the Rényi entanglement asymmetry of excited states in the (1+ 1)
dimensional free compact boson conformal field theory (CFT) at equilibrium. We obtain a …

Dynamical symmetry restoration in the Heisenberg spin chain

C Rylands, E Vernier, P Calabrese - Journal of Statistical …, 2024 - iopscience.iop.org
The entanglement asymmetry is an observable independent tool to investigate the
relaxation of quantum many-body systems through the restoration of an initially broken …