Fate of Many-Body Localization Under Periodic Driving

We study many-body localized quantum systems subject to periodic driving. We find that the presence of a mobility edge anywhere in the spectrum is enough to lead to delocalization for any driving strength and frequency. By contrast, for a fully localized many-body system, a delocalization transition...

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Bibliographic Details
Published inPhysical review letters Vol. 115; no. 3; p. 030402
Main Authors Lazarides, Achilleas, Das, Arnab, Moessner, Roderich
Format Journal Article
LanguageEnglish
Published United States 13.07.2015
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Summary:We study many-body localized quantum systems subject to periodic driving. We find that the presence of a mobility edge anywhere in the spectrum is enough to lead to delocalization for any driving strength and frequency. By contrast, for a fully localized many-body system, a delocalization transition occurs at a finite driving frequency. We present numerical studies on a system of interacting one-dimensional bosons and the quantum random energy model, as well as simple physical pictures accounting for those results.
ISSN:1079-7114
DOI:10.1103/physrevlett.115.030402