Superfluid-Insulator Transition unambiguously detected by entanglement in one-dimensional disordered superfluids

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCanella, G. A. [UNESP]-
Autor(es): dc.creatorFranca, V. V. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:04:18Z-
Data de disponibilização: dc.date.available2022-02-22T00:04:18Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2019-10-24-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41598-019-51986-0-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/194931-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/194931-
Descrição: dc.descriptionWe use entanglement to track the superfluid-insulator transition (SIT) in disordered fermionic superfluids described by the one-dimensional Hubbard model. Entanglement is found to have remarkable signatures of the SIT driven by i) the disorder strength V, ii) the concentration of impurities C and iii) the particle density n. Our results reveal the absence of a critical potential intensity on the SIT driven by V, i.e. any small V suffices to decrease considerably the degree of entanglement: it drops similar to 50% for V = -0.25t. We also find that entanglement is non-monotonic with the concentration C, approaching to zero for a certain critical value CC. This critical concentration is found to be related to a special type of localization, here named as fully-localized state, which can be also reached for a particular density n(C). Our results show that the SIT driven by n or C has distinct nature whether it leads to the full localization or to the ordinary one: it is a first-order quantum phase transition only when leading to full localization. In contrast, the SIT driven by V is never a first-order quantum phase transition independently on the type of localization reached.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionSao Paulo State Univ, Inst Chem, BR-14800090 Araraquara, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Inst Chem, BR-14800090 Araraquara, SP, Brazil-
Descrição: dc.descriptionFAPESP: 2013/15982-3-
Descrição: dc.descriptionCNPq: 465469/2014-0-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format6-
Idioma: dc.languageen-
Publicador: dc.publisherNature Publishing Group-
Relação: dc.relationScientific Reports-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleSuperfluid-Insulator Transition unambiguously detected by entanglement in one-dimensional disordered superfluids-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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