Long range correlations in the non-equilibrium quantum relaxation of a spin chain
Statistical Mechanics
2009-10-31 v1
Abstract
We consider the non-stationary quantum relaxation of the Ising spin chain in a transverse field of strength h. Starting from a homogeneously magnetized initial state the system approaches a stationary state by a process possessing quasi long range correlations in time and space, independent of the value of . In particular the system exhibits aging (or lack of time translational invariance on intermediate time scales) although no indications of coarsening are present.
Cite
@article{arxiv.cond-mat/0003193,
title = {Long range correlations in the non-equilibrium quantum relaxation of a spin chain},
author = {F. Igloi and H. Rieger},
journal= {arXiv preprint arXiv:cond-mat/0003193},
year = {2009}
}
Comments
4 pages RevTeX, 2 eps-figures included