Observing the quantum Mpemba effect in quantum simulations

LK Joshi, J Franke, A Rath, F Ares, S Murciano… - Physical Review Letters, 2024 - APS
The nonequilibrium physics of many-body quantum systems harbors various unconventional
phenomena. In this Letter, we experimentally investigate one of the most puzzling of these …

Symmetry restoration and quantum Mpemba effect in symmetric random circuits

S Liu, HK Zhang, S Yin, SX Zhang - Physical Review Letters, 2024 - APS
Entanglement asymmetry, which serves as a diagnostic tool for symmetry breaking and a
proxy for thermalization, has recently been proposed and studied in the context of symmetry …

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 …

Two-fermion negativity and confinement in the Schwinger model

A Florio - Physical Review D, 2024 - APS
We consider the fermionic (logarithmic) negativity between two fermionic modes in the
Schwinger model. Recent results pointed out that fermionic systems can exhibit stronger …

Entanglement asymmetry in the critical XXZ spin chain

M Lastres, S Murciano, F Ares… - Journal of Statistical …, 2025 - iopscience.iop.org
We study the explicit breaking of a SU (2) symmetry to a U (1) subgroup employing the
entanglement asymmetry, a recently introduced observable that measures how much …

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 …

Generalized Hydrodynamic Description of the Page Curve–like Dynamics of a Freely Expanding Fermionic Gas

M Saha, M Kulkarni, A Dhar - Physical Review Letters, 2024 - APS
We consider an analytically tractable model that exhibits the main features of the Page curve
characterizing the evolution of entanglement entropy during evaporation of a black hole. Our …

Quantum Mpemba effects in many-body localization systems

S Liu, HK Zhang, S Yin, SX Zhang, H Yao - arxiv preprint arxiv …, 2024 - arxiv.org
The nonequilibrium dynamics of quantum many-body systems have attracted growing
attention due to various intriguing phenomena absent in equilibrium physics. One famous …

Non-equilibrium dynamics of charged dual-unitary circuits

A Foligno, P Calabrese, B Bertini - arxiv preprint arxiv:2407.21786, 2024 - arxiv.org
The interplay between symmetries and entanglement in out-of-equilibrium quantum systems
is currently at the centre of an intense multidisciplinary research effort. Here we introduce a …

Entanglement asymmetry in CFT and its relation to non-topological defects

M Fossati, F Ares, J Dubail, P Calabrese - Journal of High Energy Physics, 2024 - Springer
A bstract The entanglement asymmetry is an information based observable that quantifies
the degree of symmetry breaking in a region of an extended quantum system. We …