Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate

Detalhes bibliográficos
Autor(a) principal: Adhikari, Sadhan K. [UNESP]
Data de Publicação: 2020
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.physe.2019.113713
http://hdl.handle.net/11449/199427
Resumo: We study spontaneous-symmetry-breaking circularly-asymmetric phase separation of vortex lattices in a rapidly rotating harmonically-trapped quasi-two-dimensional (quasi-2D) binary Bose-Einstein condensate (BEC) with repulsive inter- and intra-species interactions. The phase separated vortex lattices of the components appear in different regions of space with no overlap between the vortices of the two components, which will permit an efficient experimental observation of such vortices and accurate study of the effect of atomic interaction on such vortex lattice. Such phase separation takes place when the intra-species interaction energies of the two components are equal or nearly equal with relatively strong inter-species repulsion. When the intra-species energies are equal, the two phase-separated vortex lattices have identical semicircular shapes with one being the parity conjugate of the other. When the intra-species energies are nearly equal, the phase separation is also complete but the vortex lattices have different shapes. We demonstrate our claim with a numerical solution of the mean-field Gross-Pitaevskii equation for a rapidly rotating quasi-2D binary BEC.
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spelling Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensateBinary Bose-Einstein condensateGross-Pitaevskii equationSpontaneous symmetry breakingVortex-lattice formationWe study spontaneous-symmetry-breaking circularly-asymmetric phase separation of vortex lattices in a rapidly rotating harmonically-trapped quasi-two-dimensional (quasi-2D) binary Bose-Einstein condensate (BEC) with repulsive inter- and intra-species interactions. The phase separated vortex lattices of the components appear in different regions of space with no overlap between the vortices of the two components, which will permit an efficient experimental observation of such vortices and accurate study of the effect of atomic interaction on such vortex lattice. Such phase separation takes place when the intra-species interaction energies of the two components are equal or nearly equal with relatively strong inter-species repulsion. When the intra-species energies are equal, the two phase-separated vortex lattices have identical semicircular shapes with one being the parity conjugate of the other. When the intra-species energies are nearly equal, the phase separation is also complete but the vortex lattices have different shapes. We demonstrate our claim with a numerical solution of the mean-field Gross-Pitaevskii equation for a rapidly rotating quasi-2D binary BEC.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Instituto de Física Teórica Universidade Estadual Paulista - UNESP, 01.140-070 São PauloInstituto de Física Teórica Universidade Estadual Paulista - UNESP, 01.140-070 São PauloFAPESP: 2016/01343-7CNPq: 303280/2014-0Universidade Estadual Paulista (Unesp)Adhikari, Sadhan K. [UNESP]2020-12-12T01:39:26Z2020-12-12T01:39:26Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.physe.2019.113713Physica E: Low-Dimensional Systems and Nanostructures, v. 115.1386-9477http://hdl.handle.net/11449/19942710.1016/j.physe.2019.1137132-s2.0-85072262841Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysica E: Low-Dimensional Systems and Nanostructuresinfo:eu-repo/semantics/openAccess2021-10-22T21:16:11Zoai:repositorio.unesp.br:11449/199427Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:46:05.594937Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
title Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
spellingShingle Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
Adhikari, Sadhan K. [UNESP]
Binary Bose-Einstein condensate
Gross-Pitaevskii equation
Spontaneous symmetry breaking
Vortex-lattice formation
title_short Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
title_full Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
title_fullStr Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
title_full_unstemmed Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
title_sort Phase-separated symmetry-breaking vortex-lattice in a binary Bose-Einstein condensate
author Adhikari, Sadhan K. [UNESP]
author_facet Adhikari, Sadhan K. [UNESP]
author_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Adhikari, Sadhan K. [UNESP]
dc.subject.por.fl_str_mv Binary Bose-Einstein condensate
Gross-Pitaevskii equation
Spontaneous symmetry breaking
Vortex-lattice formation
topic Binary Bose-Einstein condensate
Gross-Pitaevskii equation
Spontaneous symmetry breaking
Vortex-lattice formation
description We study spontaneous-symmetry-breaking circularly-asymmetric phase separation of vortex lattices in a rapidly rotating harmonically-trapped quasi-two-dimensional (quasi-2D) binary Bose-Einstein condensate (BEC) with repulsive inter- and intra-species interactions. The phase separated vortex lattices of the components appear in different regions of space with no overlap between the vortices of the two components, which will permit an efficient experimental observation of such vortices and accurate study of the effect of atomic interaction on such vortex lattice. Such phase separation takes place when the intra-species interaction energies of the two components are equal or nearly equal with relatively strong inter-species repulsion. When the intra-species energies are equal, the two phase-separated vortex lattices have identical semicircular shapes with one being the parity conjugate of the other. When the intra-species energies are nearly equal, the phase separation is also complete but the vortex lattices have different shapes. We demonstrate our claim with a numerical solution of the mean-field Gross-Pitaevskii equation for a rapidly rotating quasi-2D binary BEC.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T01:39:26Z
2020-12-12T01:39:26Z
2020-01-01
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.physe.2019.113713
Physica E: Low-Dimensional Systems and Nanostructures, v. 115.
1386-9477
http://hdl.handle.net/11449/199427
10.1016/j.physe.2019.113713
2-s2.0-85072262841
url http://dx.doi.org/10.1016/j.physe.2019.113713
http://hdl.handle.net/11449/199427
identifier_str_mv Physica E: Low-Dimensional Systems and Nanostructures, v. 115.
1386-9477
10.1016/j.physe.2019.113713
2-s2.0-85072262841
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physica E: Low-Dimensional Systems and Nanostructures
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
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