Locally quasi-stationary states in noninteracting spin chains - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue SciPost Phys. Année : 2020

Locally quasi-stationary states in noninteracting spin chains

Résumé

Locally quasi-stationary states (LQSS) were introduced as inhomogeneous generalisations of stationary states in integrable systems. Roughly speaking, LQSSs look like stationary states, but only locally. Despite their key role in hydrodynamic descriptions, an unambiguous definition of LQSSs was not given. By solving the dynamics in inhomogeneous noninteracting spin chains, we identify the set of LQSSs as a subspace that is invariant under time evolution, and we explicitly construct the latter in a generalised XY model. As a by-product, we exhibit an exact generalised hydrodynamic theory (including "quantum corrections").
Fichier principal
Vignette du fichier
pdf.pdf (1.48 Mo) Télécharger le fichier
Origine Publication financée par une institution

Dates et versions

hal-02423699 , version 1 (08-04-2024)

Identifiants

Citer

Maurizio Fagotti. Locally quasi-stationary states in noninteracting spin chains. SciPost Phys., 2020, 8, pp.048. ⟨10.21468/SciPostPhys.8.3.048⟩. ⟨hal-02423699⟩
38 Consultations
3 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More