Information propagation through quantum chains with fluctuating disorder

verfasst von

Christian K. Burrell, Jens Eisert, Tobias J. Osborne

Abstract

We investigate the propagation of information through one-dimensional nearest-neighbor interacting quantum spin chains in the presence of external fields which fluctuate independently on each site. We study two fundamentally different models: (i) a model with general nearest-neighbor interactions in a field which fluctuates in both strength and direction and (ii) the XX chain placed in a fluctuating field aligned in the z direction. In both cases we find that information propagation is suppressed in a way which is quite different from the suppression observed when the XX model is placed in a statically disordered field.

Externe Organisation(en)

Royal Holloway University of London
Universität Potsdam
Imperial College London

Typ

Artikel

Journal

Physical Review A - Atomic, Molecular, and Optical Physics

Band

80

ISSN

1050-2947

Publikationsdatum

12.11.2009

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.1103/PhysRevA.80.052319 (Zugang: Unbekannt)