Evolution of entanglement after a local quench
Statistical Mechanics
2009-11-13 v3
Abstract
We study free electrons on an infinite half-filled chain, starting in the ground state with a bond defect. We find a logarithmic increase of the entanglement entropy after the defect is removed, followed by a slow relaxation towards the value of the homogeneous chain. The coefficients depend continuously on the defect strength.
Cite
@article{arxiv.cond-mat/0703379,
title = {Evolution of entanglement after a local quench},
author = {V. Eisler and I. Peschel},
journal= {arXiv preprint arXiv:cond-mat/0703379},
year = {2009}
}
Comments
14 pages, 9 figures, final version