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Localization of collisionally inhomogeneous condensates in a bichromatic optical lattice

dc.contributor.authorCheng, Yongshan [UNESP]
dc.contributor.authorAdhikari, S. K. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionHubei Normal University
dc.date.accessioned2022-04-28T22:02:31Z
dc.date.available2022-04-28T22:02:31Z
dc.date.issued2011-02-28
dc.description.abstractBy 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.en
dc.description.affiliationInstituto de Física Teórica UNESP - Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo
dc.description.affiliationDepartment of Physics Hubei Normal University, Huangshi 435002
dc.description.affiliationUnespInstituto de Física Teórica UNESP - Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.83.023620
dc.identifier.citationPhysical Review A - Atomic, Molecular, and Optical Physics, v. 83, n. 2, 2011.
dc.identifier.doi10.1103/PhysRevA.83.023620
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.scopus2-s2.0-79952160300
dc.identifier.urihttp://hdl.handle.net/11449/226241
dc.language.isoeng
dc.relation.ispartofPhysical Review A - Atomic, Molecular, and Optical Physics
dc.sourceScopus
dc.titleLocalization of collisionally inhomogeneous condensates in a bichromatic optical latticeen
dc.typeArtigo
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulopt

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