Solitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequency

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dc.contributor.authorAbdullaev, F. Kh
dc.contributor.authorBrtka, M.
dc.contributor.authorGammal, A.
dc.contributor.authorTomio, Lauro [UNESP]
dc.contributor.institutionUzbek Acad Sci
dc.contributor.institutionUniversidade Federal do ABC (UFABC)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionCTA
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T17:51:49Z
dc.date.available2018-11-26T17:51:49Z
dc.date.issued2018-05-17
dc.description.abstractThe 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.en
dc.description.affiliationUzbek Acad Sci, Phys Tech Inst, Bodomzor Yuli 2-B, Tashkent, Uzbekistan
dc.description.affiliationUniv Fed ABC, CCNH, BR-09210170 Santo Andre, Brazil
dc.description.affiliationUniv Fed ABC, CMCC, BR-09210170 Santo Andre, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Fis, BR-05508090 Sao Paulo 4, Brazil
dc.description.affiliationCTA, Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCNPq: 400716/2014-3
dc.description.sponsorshipIdFAPESP: 2017/05660-0
dc.description.sponsorshipIdFAPESP: 2016/17612-7
dc.format.extent14
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.97.053611
dc.identifier.citationPhysical Review A. College Pk: Amer Physical Soc, v. 97, n. 5, 14 p., 2018.
dc.identifier.doi10.1103/PhysRevA.97.053611
dc.identifier.fileWOS000433001700005.pdf
dc.identifier.issn2469-9926
dc.identifier.lattes8621258845956348
dc.identifier.urihttp://hdl.handle.net/11449/164240
dc.identifier.wosWOS:000433001700005
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review A
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleSolitons and Josephson-type oscillations in Bose-Einstein condensates with spin-orbit coupling and time-varying Raman frequencyen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
unesp.author.lattes8621258845956348

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