Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.cnsns.2022.106792 http://hdl.handle.net/11449/241538 |
Resumo: | We 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. |
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Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar dropletBeyond-mean-field interactionDipolar Bose–Einstein condensateThree-dimensional droplet solitonWe 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.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Grupo de Modelado Computacional Facultad de Ciencias Exactas y Naturales Universidad de Cartagena, BolivarInstituto de Física Teórica UNESP - Universidade Estadual Paulista, São PauloInstituto de Física Teórica UNESP - Universidade Estadual Paulista, São PauloCNPq: 301324/2019-0Universidade Estadual Paulista (UNESP)Young-S., Luis E.Adhikari, S. K. [UNESP]2023-03-01T21:08:45Z2023-03-01T21:08:45Z2022-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.cnsns.2022.106792Communications in Nonlinear Science and Numerical Simulation, v. 115.1007-5704http://hdl.handle.net/11449/24153810.1016/j.cnsns.2022.1067922-s2.0-85136455499Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCommunications in Nonlinear Science and Numerical Simulationinfo:eu-repo/semantics/openAccess2023-03-01T21:08:45Zoai:repositorio.unesp.br:11449/241538Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-01T21:08:45Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet |
title |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet |
spellingShingle |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet Young-S., Luis E. Beyond-mean-field interaction Dipolar Bose–Einstein condensate Three-dimensional droplet soliton |
title_short |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet |
title_full |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet |
title_fullStr |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet |
title_full_unstemmed |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet |
title_sort |
Effect of quartic–quintic beyond-mean-field interactions on a self-bound dipolar droplet |
author |
Young-S., Luis E. |
author_facet |
Young-S., Luis E. Adhikari, S. K. [UNESP] |
author_role |
author |
author2 |
Adhikari, S. K. [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Young-S., Luis E. Adhikari, S. K. [UNESP] |
dc.subject.por.fl_str_mv |
Beyond-mean-field interaction Dipolar Bose–Einstein condensate Three-dimensional droplet soliton |
topic |
Beyond-mean-field interaction Dipolar Bose–Einstein condensate Three-dimensional droplet soliton |
description |
We 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. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-01 2023-03-01T21:08:45Z 2023-03-01T21:08:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.cnsns.2022.106792 Communications in Nonlinear Science and Numerical Simulation, v. 115. 1007-5704 http://hdl.handle.net/11449/241538 10.1016/j.cnsns.2022.106792 2-s2.0-85136455499 |
url |
http://dx.doi.org/10.1016/j.cnsns.2022.106792 http://hdl.handle.net/11449/241538 |
identifier_str_mv |
Communications in Nonlinear Science and Numerical Simulation, v. 115. 1007-5704 10.1016/j.cnsns.2022.106792 2-s2.0-85136455499 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Communications in Nonlinear Science and Numerical Simulation |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964568524423168 |