Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorYoung-S., Luis E.-
Autor(es): dc.creatorAdhikari, S. K.-
Data de aceite: dc.date.accessioned2025-08-21T16:11:48Z-
Data de disponibilização: dc.date.available2025-08-21T16:11:48Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.cnsns.2022.106792-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/241538-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/241538-
Descrição: dc.descriptionWe study the effect of beyond-mean-field quantum-fluctuation (QF) Lee–Huang–Yang (LHY) and three-body interactions, with quartic and quintic nonlinearities, respectively, on the formation of a stable self-repulsive (positive scattering length a) and a self-attractive (negative a) self-bound dipolar Bose–Einstein condensate (BEC) droplet in free space under the action of two-body contact and dipolar interactions. Previous studies of dipolar droplets considered either the LHY interaction or the three-body interaction, as either of these interactions could stabilize a dipolar BEC droplet against collapse. We find that the effect of three-body recombination on the formation of a dipolar droplet could be quite large and for a complete description of the problem both the QF LHY and three-body interactions should be considered simultaneously, where appropriate. In the self-repulsive case for small a and in the self-attractive case, no appropriate LHY interaction is known and only three-body interaction should be used, otherwise both beyond-mean-field interactions should be used. We consider a numerical solution of a highly-nonlinear beyond-mean-field model as well as a variational approximation to it in this investigation and present results for size, shape and energy of a dipolar droplet of polarized 164Dy atoms. The shape is filament-like, along the polarization direction, and could be long, for a large number of atoms N, short for small N, thin for negative a and small positive a, and fat for large positive a.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionGrupo de Modelado Computacional Facultad de Ciencias Exactas y Naturales Universidad de Cartagena, Bolivar-
Descrição: dc.descriptionInstituto de Física Teórica UNESP - Universidade Estadual Paulista, São Paulo-
Descrição: dc.descriptionInstituto de Física Teórica UNESP - Universidade Estadual Paulista, São Paulo-
Descrição: dc.descriptionCNPq: 301324/2019-0-
Idioma: dc.languageen-
Relação: dc.relationCommunications in Nonlinear Science and Numerical Simulation-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBeyond-mean-field interaction-
Palavras-chave: dc.subjectDipolar Bose–Einstein condensate-
Palavras-chave: dc.subjectThree-dimensional droplet soliton-
Título: dc.titleEffect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet-
Tipo de arquivo: dc.typelivro digital-
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