Correlation Dynamics During a Slow Interaction Quench in a One-Dimensional Bose Gas

Abstract : We investigate the response of a one-dimensional Bose gas to a slow increase of its interaction strength. We focus on the rich dynamics of equal-time single-particle correlations treating the Lieb-Liniger model within a bosonization approach and the Bose-Hubbard model using the time-dependent density-matrix renormalization group method. For short distances, correlations follow a power law with distance with an exponent given by the adiabatic approximation. In contrast, for long distances, correlations decay algebraically with an exponent understood within the sudden quench approximation. This long distance regime is separated from an intermediate distance one by a generalized Lieb-Robinson criterion. At long times, in this intermediate regime, bosonization predicts that single-particle correlations decay following a stretched exponential, an unconventional behavior. We develop here an intuitive understanding for the propagation of correlations, in terms of a generalized light cone, applicable to a large variety of systems and quench forms.
Type de document :
Article dans une revue
Physical Review Letters, American Physical Society, 2014, 112 (6), pp.065301. 〈10.1103/PhysRevLett.112.065301〉
Liste complète des métadonnées

Littérature citée [42 références]  Voir  Masquer  Télécharger

https://hal-ens-lyon.archives-ouvertes.fr/ensl-00952887
Contributeur : Edmond Orignac <>
Soumis le : vendredi 28 mars 2014 - 07:00:05
Dernière modification le : jeudi 19 avril 2018 - 14:54:04
Document(s) archivé(s) le : samedi 28 juin 2014 - 10:37:07

Fichier

hal.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Jean-Sébastien Bernier, Roberta Citro, Corinna Kollath, Edmond Orignac. Correlation Dynamics During a Slow Interaction Quench in a One-Dimensional Bose Gas. Physical Review Letters, American Physical Society, 2014, 112 (6), pp.065301. 〈10.1103/PhysRevLett.112.065301〉. 〈ensl-00952887〉

Partager

Métriques

Consultations de la notice

150

Téléchargements de fichiers

246