Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.physleta.2020.126535 http://hdl.handle.net/11449/200389 |
Resumo: | We consider the mass-imbalanced sensibility for the emergence of vortex patterns in the Bose-Einstein condensed binary mixture of rubidium-cesium (85Rb-133Cs), confined in quasi-two-dimensional harmonic traps, with one species linearly perturbed in one direction. Non-dipolar coupled species are chosen to highlight mass symmetry effects. We first analyze the condensed mixture in the unperturbed non-rotating regime, where radial phase separation is verified in the immiscible regime, which occurs for large ratio between inter- and intra-species repulsive interactions. By going to the linear perturbed regime, the radial phase separation that occurs in the immiscible condition splits up with the two densities having their maxima at distinct positions. In the rotating regime of both unperturbed and perturbed cases, the minimum rotation is determined in terms of the inter-species interaction to observe vortex structures. In the immiscible regime a dramatic spatial interchange between the species is verified by increasing the rotation. |
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Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trapBinary mixtureBose-Einstein condensateGross-PitaevskiiRubidium-cesiumVortex patternsWe consider the mass-imbalanced sensibility for the emergence of vortex patterns in the Bose-Einstein condensed binary mixture of rubidium-cesium (85Rb-133Cs), confined in quasi-two-dimensional harmonic traps, with one species linearly perturbed in one direction. Non-dipolar coupled species are chosen to highlight mass symmetry effects. We first analyze the condensed mixture in the unperturbed non-rotating regime, where radial phase separation is verified in the immiscible regime, which occurs for large ratio between inter- and intra-species repulsive interactions. By going to the linear perturbed regime, the radial phase separation that occurs in the immiscible condition splits up with the two densities having their maxima at distinct positions. In the rotating regime of both unperturbed and perturbed cases, the minimum rotation is determined in terms of the inter-species interaction to observe vortex structures. In the immiscible regime a dramatic spatial interchange between the species is verified by increasing the rotation.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Marsden FundDepartment of Physics Centre for Quantum Science Dodd-Walls Centre for Photonic and Quantum Technologies University of OtagoInstituto de Física Teórica Universidade Estadual Paulista (UNESP)Instituto de Física Universidade de São PauloInstituto de Física Teórica Universidade Estadual Paulista (UNESP)CNPq: 153522/2018-6FAPESP: 2016/14120-6FAPESP: 2016/17612-7CNPq: 304469/2019-0CNPq: 306920/2018-2Marsden Fund: UOO1726University of OtagoUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Kishor Kumar, R. [UNESP]Gammal, A.Tomio, Lauro [UNESP]2020-12-12T02:05:21Z2020-12-12T02:05:21Z2020-08-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.physleta.2020.126535Physics Letters, Section A: General, Atomic and Solid State Physics, v. 384, n. 22, 2020.0375-9601http://hdl.handle.net/11449/20038910.1016/j.physleta.2020.1265352-s2.0-85084408156Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysics Letters, Section A: General, Atomic and Solid State Physicsinfo:eu-repo/semantics/openAccess2021-10-23T12:39:42Zoai:repositorio.unesp.br:11449/200389Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T12:39:42Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap |
title |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap |
spellingShingle |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap Kishor Kumar, R. [UNESP] Binary mixture Bose-Einstein condensate Gross-Pitaevskii Rubidium-cesium Vortex patterns |
title_short |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap |
title_full |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap |
title_fullStr |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap |
title_full_unstemmed |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap |
title_sort |
Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap |
author |
Kishor Kumar, R. [UNESP] |
author_facet |
Kishor Kumar, R. [UNESP] Gammal, A. Tomio, Lauro [UNESP] |
author_role |
author |
author2 |
Gammal, A. Tomio, Lauro [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
University of Otago Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Kishor Kumar, R. [UNESP] Gammal, A. Tomio, Lauro [UNESP] |
dc.subject.por.fl_str_mv |
Binary mixture Bose-Einstein condensate Gross-Pitaevskii Rubidium-cesium Vortex patterns |
topic |
Binary mixture Bose-Einstein condensate Gross-Pitaevskii Rubidium-cesium Vortex patterns |
description |
We consider the mass-imbalanced sensibility for the emergence of vortex patterns in the Bose-Einstein condensed binary mixture of rubidium-cesium (85Rb-133Cs), confined in quasi-two-dimensional harmonic traps, with one species linearly perturbed in one direction. Non-dipolar coupled species are chosen to highlight mass symmetry effects. We first analyze the condensed mixture in the unperturbed non-rotating regime, where radial phase separation is verified in the immiscible regime, which occurs for large ratio between inter- and intra-species repulsive interactions. By going to the linear perturbed regime, the radial phase separation that occurs in the immiscible condition splits up with the two densities having their maxima at distinct positions. In the rotating regime of both unperturbed and perturbed cases, the minimum rotation is determined in terms of the inter-species interaction to observe vortex structures. In the immiscible regime a dramatic spatial interchange between the species is verified by increasing the rotation. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:05:21Z 2020-12-12T02:05:21Z 2020-08-06 |
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.physleta.2020.126535 Physics Letters, Section A: General, Atomic and Solid State Physics, v. 384, n. 22, 2020. 0375-9601 http://hdl.handle.net/11449/200389 10.1016/j.physleta.2020.126535 2-s2.0-85084408156 |
url |
http://dx.doi.org/10.1016/j.physleta.2020.126535 http://hdl.handle.net/11449/200389 |
identifier_str_mv |
Physics Letters, Section A: General, Atomic and Solid State Physics, v. 384, n. 22, 2020. 0375-9601 10.1016/j.physleta.2020.126535 2-s2.0-85084408156 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physics Letters, Section A: General, Atomic and Solid State Physics |
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_ |
1797790354084200448 |