Work Statistics and Entanglement Across the Fermionic Superfluid-Insulator Transition

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Autor(es): dc.contributorTrinity College Dublin-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of York-
Autor(es): dc.creatorZawadzki, Krissia-
Autor(es): dc.creatorCanella, Guilherme A.-
Autor(es): dc.creatorFrança, Vivian V.-
Autor(es): dc.creatorD'Amico, Irene-
Data de aceite: dc.date.accessioned2025-08-21T21:39:24Z-
Data de disponibilização: dc.date.available2025-08-21T21:39:24Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/qute.202300237-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/304985-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/304985-
Descrição: dc.descriptionEntanglement in many-body systems may display quantum phase transition signatures, and analogous insights are emerging in the study of work fluctuations. Here, the fermionic superfluid-to-insulator transition (SIT) is considered and related to its entanglement properties and its work distribution statistics. Using the attractive fermionic Hubbard model with randomly distributed impurities, the work distribution is analyzed under two quench protocols triggering the SIT. In the first, the concentration of impurities is increased; in the second, the impurities' disorder strength is varied. The results indicate that, at criticality, the entanglement is minimized while the average work is maximized. This study demonstrates that, for this state, density fluctuations vanish at all orders, resulting in all central moments of the work probability distribution being precisely zero. For systems undergoing a precursor to the transition (short chains with finite impurity potential) numerical results confirm these predictions, with higher moments further from the ideal results. For both protocols, at criticality, the system absorbs the most energy with almost no penalty in terms of fluctuations: ultimately this feature can be used to implement a quantum critical battery. The impact of temperature on this critical behaviour is also investigated and shown to favor work extraction for high enough temperatures.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionH2020 European Research Council-
Descrição: dc.descriptionSchool of Physics Trinity College Dublin, College Green-
Descrição: dc.descriptionSão Paulo State University, São Paulo-
Descrição: dc.descriptionUniversity of York, Heslington-
Descrição: dc.descriptionSão Paulo State University, São Paulo-
Descrição: dc.descriptionCNPq: 140854/2021-5-
Descrição: dc.descriptionCNPq: 403890/2021-7-
Descrição: dc.descriptionCAPES: Finance Code 001-
Descrição: dc.descriptionH2020 European Research Council: G. A. 758403-
Idioma: dc.languageen-
Relação: dc.relationAdvanced Quantum Technologies-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectquantum phase transition-
Palavras-chave: dc.subjectquantum thermodynamics-
Palavras-chave: dc.subjectquantum work-
Palavras-chave: dc.subjectsudden quench-
Palavras-chave: dc.subjectsuperfluid-insulator transition-
Título: dc.titleWork Statistics and Entanglement Across the Fermionic Superfluid-Insulator Transition-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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