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dc.contributor.authorAdhikari, S. K.-
dc.identifier.citationEuropean Physical Journal D. New York: Springer-verlag, v. 25, n. 2, p. 161-166, 2003.-
dc.description.abstractUsing the axially-symmetric time-dependent Gross-Pitaevskii equation we study the phase coherence in a repulsive Bose-Einstein condensate (BEC) trapped by a harmonic and an one-dimensional optical lattice potential to describe the experiment by Cataliotti et al. on atomic Josephson oscillation [Science 293, 843 (2001)]. The phase coherence is maintained after the BEC is set into oscillation by a small displacement of the magnetic trap along the optical lattice. The phase coherence in the presence of oscillating neutral current across an array of Josephson junctions manifests in an interference pattern formed upon free expansion of the BEC. The numerical response of the system to a large displacement of the magnetic trap is a classical transition from a coherent superfluid to an insulator regime and a subsequent destruction of the interference pattern in agreement With the more recent experiment by Cataliotti et al. [New J. Phys. 5, 71 (2003)].en
dc.sourceWeb of Science-
dc.titleMean-field model for Josephson oscillation in a Bose-Einstein condensate on an one-dimensional optical trapen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofEuropean Physical Journal D-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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