title: Fate of Many-Body Localization Under Periodic Driving.
abstract: 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.
authors.affiliation: Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany.
authors.forename: Achilleas
authors.initials: A
authors.lastname: Lazarides
authors.affiliation: Theoretical Physics Department, Indian Association for the Cultivation of Science, Kolkata 700032, India.
authors.forename: Arnab
authors.initials: A
authors.lastname: Das
authors.affiliation: Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany.
authors.forename: Roderich
authors.initials: R
authors.lastname: Moessner