Quantum relaxation after a quench in systems with boundaries

Ferenc Iglói, Heiko Rieger

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

We study the time dependence of the magnetization profile, m l(t), of a large finite open quantum Ising chain after a quench. We observe a cyclic variation, in which starting with an exponentially decreasing period the local magnetization arrives to a quasistationary regime, which is followed by an exponentially fast reconstruction period. The nonthermal behavior observed at near-surface sites turns over to thermal behavior for bulk sites. In addition to the standard time and length scales a nonstandard time scale is identified in the reconstruction period.

Original languageEnglish
Article number035701
JournalPhysical review letters
Volume106
Issue number3
DOIs
Publication statusPublished - Jan 20 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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