Nonlinear Schrödinger equation for a superfluid Fermi gas in the BCS-BEC crossover

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAdhikari, S. K.-
Data de aceite: dc.date.accessioned2025-08-21T20:12:20Z-
Data de disponibilização: dc.date.available2025-08-21T20:12:20Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2008-04-09-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.77.045602-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/225105-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/225105-
Descrição: dc.descriptionWe introduce a quasianalytic nonlinear Schrödinger equation with beyond mean-field corrections to describe the dynamics of a zero-temperature dilute superfluid Fermi gas in the crossover from the weak-coupling Bardeen-Cooper-Schrieffer (BCS) regime, where kF |a| 1 with a the s -wave scattering length and kF the Fermi momentum, through the unitarity limit kF a→± to the Bose-Einstein condensation (BEC) regime where kF a>0. The energy of our model is parametrized using the known asymptotic behavior in the BCS, BEC, and the unitarity limits and is in excellent agreement with accurate Green's-function Monte Carlo calculations. The model generates good results for frequencies of collective breathing oscillations of a trapped Fermi superfluid. © 2008 The American Physical Society.-
Descrição: dc.descriptionInstituto de Física Teórica UNESP-São Paulo State University, 01.405-900 São Paulo, São Paulo-
Descrição: dc.descriptionInstituto de Física Teórica UNESP-São Paulo State University, 01.405-900 São Paulo, São Paulo-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review A - Atomic, Molecular, and Optical Physics-
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Título: dc.titleNonlinear Schrödinger equation for a superfluid Fermi gas in the BCS-BEC crossover-
Tipo de arquivo: dc.typelivro digital-
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