Evolution of entanglement after a local quench

Details Evolution of entanglement after a local quench Evolution of entanglement after a local quench

2007-03-14

arxiv.org/abs/cond-mat/0703379v3

J. Stat. Mech. (2007) P06005

Physics

Condensed Matter

Statistical Mechanics

14 pages, 9 figures, final version

Scientific paper

10.1088/1742-5468/2007/06/P06005

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.

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