Nonlinear Schrödinger equation for a superfluid Bose gas from weak coupling to unitarity: Study of vortices

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversità di Padova-
Autor(es): dc.creatorAdhikari, S. K.-
Autor(es): dc.creatorSalasnich, L.-
Data de aceite: dc.date.accessioned2025-08-21T15:40:48Z-
Data de disponibilização: dc.date.available2025-08-21T15:40:48Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2008-03-18-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.77.033618-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/225078-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/225078-
Descrição: dc.descriptionWe introduce a nonlinear Schrödinger equation to describe the dynamics of a superfluid Bose gas in the crossover from the weak-coupling regime, where a n1/3 1 with a the interatomic s -wave scattering length and n the bosonic density, to the unitarity limit, where a→+. We call this equation the unitarity Schrödinger equation (USE). The zero-temperature bulk equation of state of this USE is parametrized by the Lee-Yang-Huang low-density expansion and Jastrow calculations at unitarity. With the help of the USE we study the profiles of quantized vortices and vortex-core radius in a uniform Bose gas. We also consider quantized vortices in a Bose gas under cylindrically symmetric harmonic confinement and study their profile and chemical potential using the USE and compare the results with those obtained from the Gross-Pitaevskii-type equations valid in the weak-coupling limit. Finally, the USE is applied to calculate the breathing modes of the confined Bose gas as a function of the scattering length. © 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.descriptionCNR-INFM CNISM Università di Padova, Via Marzolo 8, 35131 Padova-
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 Bose gas from weak coupling to unitarity: Study of vortices-
Tipo de arquivo: dc.typelivro digital-
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