Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevA.97.053611 http://hdl.handle.net/11449/164240 |
Resumo: | The existence and dynamics of solitons in quasi-one-dimensional Bose-Einstein condensates with spin-orbit coupling (SOC) and attractive two-body interactions are described for two coupled atomic pseudospin components with slowly and rapidly varying time-dependent Raman frequency. By varying the Raman frequency linearly in time, it was shown that ordinary nonlinear Schrodinger-type bright solitons can be converted to striped bright solitons, and vice versa. The internal Josephson oscillations between atom number of the coupled soliton components and the corresponding center-of-mass motion are studied for different parameter configurations. In this case, a mechanism to control the soliton parameters is proposed by considering parametric resonances, which can emerge when using time-varying Raman frequencies. Full-numerical simulations confirm variational analysis predictions when applied to the region where regular solitons are expected. In the limit of high frequencies, the system is described by a time-averaged Gross-Pitaevskii formalism with renormalized nonlinear and SOC parameters and modified phase-dependent nonlinearities. By comparing full-numerical simulations with averaged results, we have also studied the lower limits for the frequency of Raman oscillations in order to obtain stable soliton solutions. |
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Repositório Institucional da UNESP |
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Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequencyThe existence and dynamics of solitons in quasi-one-dimensional Bose-Einstein condensates with spin-orbit coupling (SOC) and attractive two-body interactions are described for two coupled atomic pseudospin components with slowly and rapidly varying time-dependent Raman frequency. By varying the Raman frequency linearly in time, it was shown that ordinary nonlinear Schrodinger-type bright solitons can be converted to striped bright solitons, and vice versa. The internal Josephson oscillations between atom number of the coupled soliton components and the corresponding center-of-mass motion are studied for different parameter configurations. In this case, a mechanism to control the soliton parameters is proposed by considering parametric resonances, which can emerge when using time-varying Raman frequencies. Full-numerical simulations confirm variational analysis predictions when applied to the region where regular solitons are expected. In the limit of high frequencies, the system is described by a time-averaged Gross-Pitaevskii formalism with renormalized nonlinear and SOC parameters and modified phase-dependent nonlinearities. By comparing full-numerical simulations with averaged results, we have also studied the lower limits for the frequency of Raman oscillations in order to obtain stable soliton solutions.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Uzbek Acad Sci, Phys Tech Inst, Bodomzor Yuli 2-B, Tashkent, UzbekistanUniv Fed ABC, CCNH, BR-09210170 Santo Andre, BrazilUniv Fed ABC, CMCC, BR-09210170 Santo Andre, BrazilUniv Sao Paulo, Inst Fis, BR-05508090 Sao Paulo 4, BrazilCTA, Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, BrazilUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, BrazilUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, BrazilCNPq: 400716/2014-3FAPESP: 2017/05660-0FAPESP: 2016/17612-7Amer Physical SocUzbek Acad SciUniversidade Federal do ABC (UFABC)Universidade de São Paulo (USP)CTAUniversidade Estadual Paulista (Unesp)Abdullaev, F. KhBrtka, M.Gammal, A.Tomio, Lauro [UNESP]2018-11-26T17:51:49Z2018-11-26T17:51:49Z2018-05-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://dx.doi.org/10.1103/PhysRevA.97.053611Physical Review A. College Pk: Amer Physical Soc, v. 97, n. 5, 14 p., 2018.2469-9926http://hdl.handle.net/11449/16424010.1103/PhysRevA.97.053611WOS:000433001700005WOS000433001700005.pdf8621258845956348Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Ainfo:eu-repo/semantics/openAccess2023-12-30T06:18:34Zoai:repositorio.unesp.br:11449/164240Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:41:35.836676Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency |
title |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency |
spellingShingle |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency Abdullaev, F. Kh |
title_short |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency |
title_full |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency |
title_fullStr |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency |
title_full_unstemmed |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency |
title_sort |
Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency |
author |
Abdullaev, F. Kh |
author_facet |
Abdullaev, F. Kh Brtka, M. Gammal, A. Tomio, Lauro [UNESP] |
author_role |
author |
author2 |
Brtka, M. Gammal, A. Tomio, Lauro [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Uzbek Acad Sci Universidade Federal do ABC (UFABC) Universidade de São Paulo (USP) CTA Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Abdullaev, F. Kh Brtka, M. Gammal, A. Tomio, Lauro [UNESP] |
description |
The existence and dynamics of solitons in quasi-one-dimensional Bose-Einstein condensates with spin-orbit coupling (SOC) and attractive two-body interactions are described for two coupled atomic pseudospin components with slowly and rapidly varying time-dependent Raman frequency. By varying the Raman frequency linearly in time, it was shown that ordinary nonlinear Schrodinger-type bright solitons can be converted to striped bright solitons, and vice versa. The internal Josephson oscillations between atom number of the coupled soliton components and the corresponding center-of-mass motion are studied for different parameter configurations. In this case, a mechanism to control the soliton parameters is proposed by considering parametric resonances, which can emerge when using time-varying Raman frequencies. Full-numerical simulations confirm variational analysis predictions when applied to the region where regular solitons are expected. In the limit of high frequencies, the system is described by a time-averaged Gross-Pitaevskii formalism with renormalized nonlinear and SOC parameters and modified phase-dependent nonlinearities. By comparing full-numerical simulations with averaged results, we have also studied the lower limits for the frequency of Raman oscillations in order to obtain stable soliton solutions. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T17:51:49Z 2018-11-26T17:51:49Z 2018-05-17 |
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.97.053611 Physical Review A. College Pk: Amer Physical Soc, v. 97, n. 5, 14 p., 2018. 2469-9926 http://hdl.handle.net/11449/164240 10.1103/PhysRevA.97.053611 WOS:000433001700005 WOS000433001700005.pdf 8621258845956348 |
url |
http://dx.doi.org/10.1103/PhysRevA.97.053611 http://hdl.handle.net/11449/164240 |
identifier_str_mv |
Physical Review A. College Pk: Amer Physical Soc, v. 97, n. 5, 14 p., 2018. 2469-9926 10.1103/PhysRevA.97.053611 WOS:000433001700005 WOS000433001700005.pdf 8621258845956348 |
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 |
14 application/pdf |
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_ |
1808129347685449728 |