Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.96.063624 http://hdl.handle.net/11449/228488 |
Resumo: | We study the structure and stability of vortex lattices in two-component rotating Bose-Einstein condensates with intrinsic dipole-dipole interactions and contact interactions. To address experimentally accessible coupled systems, we consider Dy164-Dy162 and Er168-Dy164 mixtures, which feature different miscibilities. The corresponding dipole moments are μDy=10μB and μEr=7μB, where μB is the Bohr magneton. For comparison we also discuss a case where one of the species is nondipolar. Under a large aspect ratio of the trap, we consider mixtures in the pancake-shaped format, which are modeled by effective two-dimensional coupled Gross-Pitaevskii equations, with a fixed polarization of the magnetic dipoles. Then, the miscibility and vortex-lattice structures are studied by varying the coefficients of the contact interactions (assuming the use of the Feshbach-resonance mechanism) and the rotation frequency. We present phase diagrams for several types of lattices in the parameter plane of the rotation frequency and the ratio of inter- and intraspecies scattering lengths. The vortex structures are found to be diverse for the more miscible Dy164-Dy162 composition, with a variety of shapes, whereas for the less miscible case of Er168-Dy164, the lattice patterns mainly feature circular or square formats. |
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Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactionsWe study the structure and stability of vortex lattices in two-component rotating Bose-Einstein condensates with intrinsic dipole-dipole interactions and contact interactions. To address experimentally accessible coupled systems, we consider Dy164-Dy162 and Er168-Dy164 mixtures, which feature different miscibilities. The corresponding dipole moments are μDy=10μB and μEr=7μB, where μB is the Bohr magneton. For comparison we also discuss a case where one of the species is nondipolar. Under a large aspect ratio of the trap, we consider mixtures in the pancake-shaped format, which are modeled by effective two-dimensional coupled Gross-Pitaevskii equations, with a fixed polarization of the magnetic dipoles. Then, the miscibility and vortex-lattice structures are studied by varying the coefficients of the contact interactions (assuming the use of the Feshbach-resonance mechanism) and the rotation frequency. We present phase diagrams for several types of lattices in the parameter plane of the rotation frequency and the ratio of inter- and intraspecies scattering lengths. The vortex structures are found to be diverse for the more miscible Dy164-Dy162 composition, with a variety of shapes, whereas for the less miscible case of Er168-Dy164, the lattice patterns mainly feature circular or square formats.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Israel Science FoundationNational Science FoundationInstituto de Física Universidade de São PauloInstituto de Física Teórica Universidade Estadual PaulistaInstitutoTecnológico de Aeronáutica DCTADepartment of Physical Electronics School of Electrical Engineering Faculty of Engineering Tel Aviv UniversityITMO UniversityInstituto de Física Teórica Universidade Estadual PaulistaFAPESP: 2014/01668-8Universidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)DCTATel Aviv UniversityITMO UniversityKumar, Ramavarmaraja KishorTomio, Lauro [UNESP]Malomed, Boris A.Gammal, Arnaldo2022-04-29T08:26:57Z2022-04-29T08:26:57Z2017-12-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevA.96.063624Physical Review A, v. 96, n. 6, 2017.2469-99342469-9926http://hdl.handle.net/11449/22848810.1103/PhysRevA.96.0636242-s2.0-85039865465Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Ainfo:eu-repo/semantics/openAccess2022-04-29T08:26:58Zoai:repositorio.unesp.br:11449/228488Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:22:18.382983Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions |
title |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions |
spellingShingle |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions Kumar, Ramavarmaraja Kishor |
title_short |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions |
title_full |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions |
title_fullStr |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions |
title_full_unstemmed |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions |
title_sort |
Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions |
author |
Kumar, Ramavarmaraja Kishor |
author_facet |
Kumar, Ramavarmaraja Kishor Tomio, Lauro [UNESP] Malomed, Boris A. Gammal, Arnaldo |
author_role |
author |
author2 |
Tomio, Lauro [UNESP] Malomed, Boris A. Gammal, Arnaldo |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) DCTA Tel Aviv University ITMO University |
dc.contributor.author.fl_str_mv |
Kumar, Ramavarmaraja Kishor Tomio, Lauro [UNESP] Malomed, Boris A. Gammal, Arnaldo |
description |
We study the structure and stability of vortex lattices in two-component rotating Bose-Einstein condensates with intrinsic dipole-dipole interactions and contact interactions. To address experimentally accessible coupled systems, we consider Dy164-Dy162 and Er168-Dy164 mixtures, which feature different miscibilities. The corresponding dipole moments are μDy=10μB and μEr=7μB, where μB is the Bohr magneton. For comparison we also discuss a case where one of the species is nondipolar. Under a large aspect ratio of the trap, we consider mixtures in the pancake-shaped format, which are modeled by effective two-dimensional coupled Gross-Pitaevskii equations, with a fixed polarization of the magnetic dipoles. Then, the miscibility and vortex-lattice structures are studied by varying the coefficients of the contact interactions (assuming the use of the Feshbach-resonance mechanism) and the rotation frequency. We present phase diagrams for several types of lattices in the parameter plane of the rotation frequency and the ratio of inter- and intraspecies scattering lengths. The vortex structures are found to be diverse for the more miscible Dy164-Dy162 composition, with a variety of shapes, whereas for the less miscible case of Er168-Dy164, the lattice patterns mainly feature circular or square formats. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-29 2022-04-29T08:26:57Z 2022-04-29T08:26:57Z |
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/10.1103/PhysRevA.96.063624 Physical Review A, v. 96, n. 6, 2017. 2469-9934 2469-9926 http://hdl.handle.net/11449/228488 10.1103/PhysRevA.96.063624 2-s2.0-85039865465 |
url |
http://dx.doi.org/10.1103/PhysRevA.96.063624 http://hdl.handle.net/11449/228488 |
identifier_str_mv |
Physical Review A, v. 96, n. 6, 2017. 2469-9934 2469-9926 10.1103/PhysRevA.96.063624 2-s2.0-85039865465 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review A |
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_ |
1808129512263647232 |