Localization of a Bose-Einstein condensate in a bichromatic optical lattice
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.80.023606 http://hdl.handle.net/11449/195940 |
Resumo: | By direct numerical simulation of the time-dependent Gross-Pitaevskii equation, we study different aspects of the localization of a noninteracting ideal Bose-Einstein condensate (BEC) in a one-dimensional bichromatic quasiperiodic optical-lattice potential. Such a quasiperiodic potential, used in a recent experiment on the localization of a BEC [Roati et al., Nature (London) 453, 895 (2008)], can be formed by the superposition of two standing-wave polarized laser beams with different wavelengths. We investigate the effect of the variation of optical amplitudes and wavelengths on the localization of a noninteracting BEC. We also simulate the nonlinear dynamics when a harmonically trapped BEC is suddenly released into a quasiperiodic potential, as done experimentally in a laser speckle potential [Billy et al., Nature (London) 453, 891 (2008)]. We finally study the destruction of the localization in an interacting BEC due to the repulsion generated by a positive scattering length between the bosonic atoms. |
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Localization of a Bose-Einstein condensate in a bichromatic optical latticeBy direct numerical simulation of the time-dependent Gross-Pitaevskii equation, we study different aspects of the localization of a noninteracting ideal Bose-Einstein condensate (BEC) in a one-dimensional bichromatic quasiperiodic optical-lattice potential. Such a quasiperiodic potential, used in a recent experiment on the localization of a BEC [Roati et al., Nature (London) 453, 895 (2008)], can be formed by the superposition of two standing-wave polarized laser beams with different wavelengths. We investigate the effect of the variation of optical amplitudes and wavelengths on the localization of a noninteracting BEC. We also simulate the nonlinear dynamics when a harmonically trapped BEC is suddenly released into a quasiperiodic potential, as done experimentally in a laser speckle potential [Billy et al., Nature (London) 453, 891 (2008)]. We finally study the destruction of the localization in an interacting BEC due to the repulsion generated by a positive scattering length between the bosonic atoms.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CARIPARO (Italy)Sao Paulo State Univ, UNESP, Inst Fis Teor, BR-01140070 Sao Paulo, BrazilINFM, CNR, I-35131 Padua, ItalyUniv Padua, Dipartimento Fis G Galilei, CNISM, Unita Padova, I-35131 Padua, ItalySao Paulo State Univ, UNESP, Inst Fis Teor, BR-01140070 Sao Paulo, BrazilAmer Physical SocUniversidade Estadual Paulista (Unesp)INFMUniv PaduaAdhikari, S. K. [UNESP]Salasnich, L.2020-12-10T18:13:20Z2020-12-10T18:13:20Z2009-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7http://dx.doi.org/10.1103/PhysRevA.80.023606Physical Review A. College Pk: Amer Physical Soc, v. 80, n. 2, 7 p., 2009.1050-2947http://hdl.handle.net/11449/19594010.1103/PhysRevA.80.023606WOS:000269638200143Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Ainfo:eu-repo/semantics/openAccess2021-10-22T17:27:41Zoai:repositorio.unesp.br:11449/195940Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T17:27:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice |
title |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice |
spellingShingle |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice Adhikari, S. K. [UNESP] |
title_short |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice |
title_full |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice |
title_fullStr |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice |
title_full_unstemmed |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice |
title_sort |
Localization of a Bose-Einstein condensate in a bichromatic optical lattice |
author |
Adhikari, S. K. [UNESP] |
author_facet |
Adhikari, S. K. [UNESP] Salasnich, L. |
author_role |
author |
author2 |
Salasnich, L. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) INFM Univ Padua |
dc.contributor.author.fl_str_mv |
Adhikari, S. K. [UNESP] Salasnich, L. |
description |
By direct numerical simulation of the time-dependent Gross-Pitaevskii equation, we study different aspects of the localization of a noninteracting ideal Bose-Einstein condensate (BEC) in a one-dimensional bichromatic quasiperiodic optical-lattice potential. Such a quasiperiodic potential, used in a recent experiment on the localization of a BEC [Roati et al., Nature (London) 453, 895 (2008)], can be formed by the superposition of two standing-wave polarized laser beams with different wavelengths. We investigate the effect of the variation of optical amplitudes and wavelengths on the localization of a noninteracting BEC. We also simulate the nonlinear dynamics when a harmonically trapped BEC is suddenly released into a quasiperiodic potential, as done experimentally in a laser speckle potential [Billy et al., Nature (London) 453, 891 (2008)]. We finally study the destruction of the localization in an interacting BEC due to the repulsion generated by a positive scattering length between the bosonic atoms. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-08-01 2020-12-10T18:13:20Z 2020-12-10T18:13:20Z |
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.80.023606 Physical Review A. College Pk: Amer Physical Soc, v. 80, n. 2, 7 p., 2009. 1050-2947 http://hdl.handle.net/11449/195940 10.1103/PhysRevA.80.023606 WOS:000269638200143 |
url |
http://dx.doi.org/10.1103/PhysRevA.80.023606 http://hdl.handle.net/11449/195940 |
identifier_str_mv |
Physical Review A. College Pk: Amer Physical Soc, v. 80, n. 2, 7 p., 2009. 1050-2947 10.1103/PhysRevA.80.023606 WOS:000269638200143 |
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.format.none.fl_str_mv |
7 |
dc.publisher.none.fl_str_mv |
Amer Physical Soc |
publisher.none.fl_str_mv |
Amer Physical Soc |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1799965367136681984 |