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arXiv:cond-mat/0703379 · Journal of Statistical Mechanics Theory and Experiment

Evolution of entanglement after a local quench

Viktor Eisler, Ingo Peschel

Published Jun 1, 2007• 185 citations
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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.
DOI
10.1088/1742-5468/2007/06/p06005

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