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dc.contributor.authorAdhikari, Sadhan Kumar [UNESP]
dc.contributor.authorSalasnich, L.
dc.date.accessioned2013-09-30T18:58:02Z
dc.date.accessioned2014-05-20T14:11:40Z
dc.date.available2013-09-30T18:58:02Z
dc.date.available2014-05-20T14:11:40Z
dc.date.issued2008-03-01
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.77.033618
dc.identifier.citationPhysical Review A. College Pk: Amer Physical Soc, v. 77, n. 3, p. 10, 2008.
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/11449/24475
dc.description.abstractWe introduce a nonlinear Schrodinger equation to describe the dynamics of a superfluid Bose gas in the crossover from the weak-coupling regime, where an(1/3)<<1 with a the interatomic s-wave scattering length and n the bosonic density, to the unitarity limit, where a ->+infinity. We call this equation the unitarity Schrodinger equation (USE). The zero-temperature bulk equation of state of this USE is parametrized by the Lee-Yang-Huang low-density expansion and Jastrow calculations at unitarity. With the help of the USE we study the profiles of quantized vortices and vortex-core radius in a uniform Bose gas. We also consider quantized vortices in a Bose gas under cylindrically symmetric harmonic confinement and study their profile and chemical potential using the USE and compare the results with those obtained from the Gross-Pitaevskii-type equations valid in the weak-coupling limit. Finally, the USE is applied to calculate the breathing modes of the confined Bose gas as a function of the scattering length.en
dc.format.extent10
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review A
dc.sourceWeb of Science
dc.titleNonlinear Schrodinger equation for a superfluid Bose gas from weak coupling to unitarity: Study of vorticesen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniv Padua
dc.description.affiliationSão Paulo State Univ, UNESP, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUniv Padua, Dipartimento Fis G Galilei, Unit Padova, CNISM, I-35131 Padua, Italy
dc.description.affiliationUniv Padua, CNR, INFM, I-35131 Padua, Italy
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.identifier.doi10.1103/PhysRevA.77.033618
dc.identifier.wosWOS:000254541100182
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulopt
dc.identifier.fileWOS000254541100182.pdf
dc.identifier.lattes8031087349809439
unesp.author.lattes8031087349809439
dc.relation.ispartofsjr1,288
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