Evolution of entanglement after a local quench

被引：149

作者：

Eisler, Viktor ^{[1
]}

Peschel, Ingo ^{[1
]}

机构：

[1] Free Univ Berlin, Fachbereich Phys, D-14195 Berlin, Germany

来源：

JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT | 2007年

关键词：

spin chains; ladders and planes (theory); entanglement in extended quantum systems (theory);

D O I：

10.1088/1742-5468/2007/06/P06005

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

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.

引用

页数：14

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