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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampMiranda, Eduardopt_BR
dc.typeArtigopt_BR
dc.titleNon-gaussian spatial correlations dramatically weaken localizationpt_BR
dc.contributor.authorMard, H. J.pt_BR
dc.contributor.authorAndrade, E. C.pt_BR
dc.contributor.authorMiranda, E.pt_BR
dc.contributor.authorDobrosavljevic, V.pt_BR
dc.subjectPoços quânticospt_BR
dc.subjectFunção de ondapt_BR
dc.subject.otherlanguageQuantum wellspt_BR
dc.subject.otherlanguageWave functionpt_BR
dc.description.abstractWe perform variational studies of the interaction-localization problem to describe the interaction-induced renormalizations of the effective (screened) random potential seen by quasiparticles. Here we present results of careful finite-size scaling studies for the conductance of disordered Hubbard chains at half-filling and zero temperature. While our results indicate that quasiparticle wave functions remain exponentially localized even in the presence of moderate to strong repulsive interactions, we show that interactions produce a strong decrease of the characteristic conductance scale g∗ signaling the crossover to strong localization. This effect, which cannot be captured by a simple renormalization of the disorder strength, instead reflects a peculiar non-Gaussian form of the spatial correlations of the screened disordered potential, a hitherto neglected mechanism to dramatically reduce the impact of Anderson localization (interference) effects.en
dc.description.abstractWe perform variational studies of the interaction-localization problem to describe the interaction-induced renormalizations of the effective (screened) random potential seen by quasiparticles. Here we present results of careful finite-size scaling studies for the conductance of disordered Hubbard chains at half-filling and zero temperature. While our results indicate that quasiparticle wave functions remain exponentially localized even in the presence of moderate to strong repulsive interactions, we show that interactions produce a strong decrease of the characteristic conductance scale g* signaling the crossover to strong localization. This effect, which cannot be captured by a simple renormalization of the disorder strength, instead reflects a peculiar non-Gaussian form of the spatial correlations of the screened disordered potential, a hitherto neglected mechanism to dramatically reduce the impact of Anderson localization (interference) effects.pt
dc.relation.ispartofPhysical review letterspt_BR
dc.relation.ispartofabbreviationPhys. rev. lett.pt_BR
dc.publisher.cityCollege Park, MDpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherAmerican Physical Societypt_BR
dc.date.issued2015pt_BR
dc.date.monthofcirculationFeb.pt_BR
dc.identifier.citationPhysical Review Letters. American Physical Society, v. 114, n. 5, p. - , 2015.pt_BR
dc.language.isoengpt_BR
dc.description.volume114pt_BR
dc.description.issuenumber5pt_BR
dc.description.firstpage1pt_BR
dc.description.lastpage5pt_BR
dc.rightsabertopt_BR
dc.sourceScopuspt_BR
dc.identifier.issn0031-9007pt_BR
dc.identifier.eissn1079-7114pt_BR
dc.identifier.doi10.1103/PhysRevLett.114.056401pt_BR
dc.identifier.urlhttps://journals.aps.org/prl/abstract/10.1103/PhysRevLett.114.056401pt_BR
dc.description.sponsorshipCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOpt_BR
dc.description.sponsorshipFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOpt_BR
dc.description.sponsorship1CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOpt_BR
dc.description.sponsorship1FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOpt_BR
dc.description.sponsordocumentnumber304311/2010-3pt_BR
dc.description.sponsordocumentnumber07/57630-5pt_BR
dc.date.available2015-06-25T12:55:45Z-
dc.date.available2015-11-26T15:20:36Z-
dc.date.accessioned2015-06-25T12:55:45Z-
dc.date.accessioned2015-11-26T15:20:36Z-
dc.description.provenanceMade available in DSpace on 2015-06-25T12:55:45Z (GMT). No. of bitstreams: 1 2-s2.0-84922349979.pdf: 429643 bytes, checksum: e06d5d254b6e09e886689b33bb7f84ef (MD5) Previous issue date: 2015 Bitstreams deleted on 2020-02-17T19:32:45Z: 2-s2.0-84922349979.pdf,. Added 1 bitstream(s) on 2020-02-17T19:36:10Z : No. of bitstreams: 2 000349864300008.pdf: 544086 bytes, checksum: 69d1ab87c77c964a3d8b09f0128e098f (MD5) 2-s2.0-84922349979.pdf.txt: 22526 bytes, checksum: 7c669b1fb5f3c79a05b6294d1de9f0e4 (MD5) Bitstreams deleted on 2020-02-17T19:38:42Z: 000349864300008.pdf,. Added 1 bitstream(s) on 2020-02-17T19:49:28Z : No. of bitstreams: 2 000349864300008.pdf: 544086 bytes, checksum: 69d1ab87c77c964a3d8b09f0128e098f (MD5) 2-s2.0-84922349979.pdf.txt: 22526 bytes, checksum: 7c669b1fb5f3c79a05b6294d1de9f0e4 (MD5)en
dc.description.provenanceMade available in DSpace on 2015-11-26T15:20:36Z (GMT). No. of bitstreams: 2 2-s2.0-84922349979.pdf: 429643 bytes, checksum: e06d5d254b6e09e886689b33bb7f84ef (MD5) 2-s2.0-84922349979.pdf.txt: 22526 bytes, checksum: 7c669b1fb5f3c79a05b6294d1de9f0e4 (MD5) Previous issue date: 2015en
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/85642-
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/85642-
dc.contributor.departmentDepartamento de Física da Matéria Condensadapt_BR
dc.contributor.unidadeInstituto de Física Gleb Wataghinpt_BR
dc.identifier.source000349864300008pt_BR
dc.creator.orcid0000-0001-8833-1653pt_BR
dc.type.formArtigopt_BR
dc.identifier.articleid56401pt_BR
dc.description.sponsorNoteAgências de fomento estrangeiras apoiaram essa pesquisa, mais informações acesse artigopt_BR
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