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dc.contributor.authorLuitz, David J.
hal.structure.identifierCEntre de REcherches en MAthématiques de la DEcision [CEREMADE]
dc.contributor.authorHuveneers, François
hal.structure.identifierInstitut für Theoretische Physik
dc.contributor.authorDe Roeck, Wojciech
dc.date.accessioned2019-01-14T12:47:00Z
dc.date.available2019-01-14T12:47:00Z
dc.date.issued2017
dc.identifier.issn0031-9007
dc.identifier.urihttps://basepub.dauphine.fr/handle/123456789/18376
dc.language.isoenen
dc.subjectStatistical Physicsen
dc.subjectCondensed Matter & Materials Physicsen
dc.subjectMatière Condenséeen
dc.subjectElectrons fortement corrélésen
dc.subject.ddc520en
dc.titleHow a Small Quantum Bath Can Thermalize Long Localized Chainsen
dc.typeArticle accepté pour publication ou publié
dc.description.abstractenWe investigate the stability of the many-body localized phase for a system in contact with a single ergodic grain modeling a Griffiths region with low disorder. Our numerical analysis provides evidence that even a small ergodic grain consisting of only three qubits can delocalize a localized chain as soon as the localization length exceeds a critical value separating localized and extended regimes of the whole system. We present a simple theory, consistent with De Roeck and Huveneers’s arguments in [Phys. Rev. B 95, 155129 (2017)] that assumes a system to be locally ergodic unless the local relaxation time determined by Fermi’s golden rule is larger than the inverse level spacing. This theory predicts a critical value for the localization length that is perfectly consistent with our numerical calculations. We analyze in detail the behavior of local operators inside and outside the ergodic grain and find excellent agreement of numerics and theory.en
dc.relation.isversionofjnlnamePhysical Review Letters
dc.relation.isversionofjnlvol119en
dc.relation.isversionofjnlissue15en
dc.relation.isversionofjnldate2017-10
dc.relation.isversionofjnlpages7en
dc.relation.isversionofdoi10.1103/PhysRevLett.119.150602en
dc.relation.isversionofjnlpublisherAmerican Physical Societyen
dc.subject.ddclabelSciences connexes (physique, astrophysique)en
dc.relation.forthcomingnonen
dc.relation.forthcomingprintnonen
dc.description.ssrncandidatenonen
dc.description.halcandidatenonen
dc.description.readershiprechercheen
dc.description.audienceInternationalen
dc.relation.Isversionofjnlpeerreviewedouien
dc.relation.Isversionofjnlpeerreviewedouien
dc.date.updated2019-01-14T12:40:24Z
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