Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.83.023620 http://hdl.handle.net/11449/226241 |
Resumo: | By direct numerical simulation and variational solution of the Gross-Pitaevskii equation, we studied the stationary and dynamic characteristics of a cigar-shaped, localized, collisionally inhomogeneous Bose-Einstein condensate trapped in a one-dimensional bichromatic quasiperiodic optical-lattice potential, as used in a recent experiment on the localization of a Bose-Einstein condensate. The effective potential characterizing the spatially modulated nonlinearity is obtained. It is found that the collisional inhomogeneity has influence not only on the central region but also on the tail of the Bose-Einstein condensate. The influence depends on the sign and value of the spatially modulated nonlinearity coefficient. We also demonstrate the stability of the stationary localized state by performing a standard linear stability analysis. Where possible, the numerical results are shown to be in good agreement with the variational results. © 2011 American Physical Society. |
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Repositório Institucional da UNESP |
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spelling |
Localization of collisionally inhomogeneous condensates in a bichromatic optical latticeBy direct numerical simulation and variational solution of the Gross-Pitaevskii equation, we studied the stationary and dynamic characteristics of a cigar-shaped, localized, collisionally inhomogeneous Bose-Einstein condensate trapped in a one-dimensional bichromatic quasiperiodic optical-lattice potential, as used in a recent experiment on the localization of a Bose-Einstein condensate. The effective potential characterizing the spatially modulated nonlinearity is obtained. It is found that the collisional inhomogeneity has influence not only on the central region but also on the tail of the Bose-Einstein condensate. The influence depends on the sign and value of the spatially modulated nonlinearity coefficient. We also demonstrate the stability of the stationary localized state by performing a standard linear stability analysis. Where possible, the numerical results are shown to be in good agreement with the variational results. © 2011 American Physical Society.Instituto de Física Teórica UNESP - Universidade Estadual Paulista, 01.140-070 São Paulo, São PauloDepartment of Physics Hubei Normal University, Huangshi 435002Instituto de Física Teórica UNESP - Universidade Estadual Paulista, 01.140-070 São Paulo, São PauloUniversidade Estadual Paulista (UNESP)Hubei Normal UniversityCheng, Yongshan [UNESP]Adhikari, S. K. [UNESP]2022-04-28T22:02:31Z2022-04-28T22:02:31Z2011-02-28info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevA.83.023620Physical Review A - Atomic, Molecular, and Optical Physics, v. 83, n. 2, 2011.1050-29471094-1622http://hdl.handle.net/11449/22624110.1103/PhysRevA.83.0236202-s2.0-79952160300Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review A - Atomic, Molecular, and Optical Physicsinfo:eu-repo/semantics/openAccess2022-04-28T22:02:31Zoai:repositorio.unesp.br:11449/226241Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:04:44.055029Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice |
title |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice |
spellingShingle |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice Cheng, Yongshan [UNESP] |
title_short |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice |
title_full |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice |
title_fullStr |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice |
title_full_unstemmed |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice |
title_sort |
Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice |
author |
Cheng, Yongshan [UNESP] |
author_facet |
Cheng, Yongshan [UNESP] 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) Hubei Normal University |
dc.contributor.author.fl_str_mv |
Cheng, Yongshan [UNESP] Adhikari, S. K. [UNESP] |
description |
By direct numerical simulation and variational solution of the Gross-Pitaevskii equation, we studied the stationary and dynamic characteristics of a cigar-shaped, localized, collisionally inhomogeneous Bose-Einstein condensate trapped in a one-dimensional bichromatic quasiperiodic optical-lattice potential, as used in a recent experiment on the localization of a Bose-Einstein condensate. The effective potential characterizing the spatially modulated nonlinearity is obtained. It is found that the collisional inhomogeneity has influence not only on the central region but also on the tail of the Bose-Einstein condensate. The influence depends on the sign and value of the spatially modulated nonlinearity coefficient. We also demonstrate the stability of the stationary localized state by performing a standard linear stability analysis. Where possible, the numerical results are shown to be in good agreement with the variational results. © 2011 American Physical Society. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-02-28 2022-04-28T22:02:31Z 2022-04-28T22:02:31Z |
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.83.023620 Physical Review A - Atomic, Molecular, and Optical Physics, v. 83, n. 2, 2011. 1050-2947 1094-1622 http://hdl.handle.net/11449/226241 10.1103/PhysRevA.83.023620 2-s2.0-79952160300 |
url |
http://dx.doi.org/10.1103/PhysRevA.83.023620 http://hdl.handle.net/11449/226241 |
identifier_str_mv |
Physical Review A - Atomic, Molecular, and Optical Physics, v. 83, n. 2, 2011. 1050-2947 1094-1622 10.1103/PhysRevA.83.023620 2-s2.0-79952160300 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review A - Atomic, Molecular, and Optical 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_ |
1808129016560877568 |