Information propagation through quantum chains with fluctuating disorder

authored by

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.

External Organisation(s)

Royal Holloway University of London
University of Potsdam
Imperial College London

Type

Article

Journal

Physical Review A - Atomic, Molecular, and Optical Physics

Volume

80

ISSN

1050-2947

Publication date

12.11.2009

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1103/PhysRevA.80.052319 (Access: Unknown)