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dc.contributor.authorMuruganandam, P.
dc.contributor.authorAdhikari, S. K.
dc.identifier.citationJournal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 36, n. 12, p. 2501-2513, 2003.
dc.description.abstractWe suggest a pseudospectral method for solving the three-dimensional time-dependent Gross-Pitaevskii (GP) equation, and use it to study the resonance dynamics of a trapped Bose-Einstein condensate induced by a periodic variation in the atomic scattering length. When the frequency of oscillation of the scattering length is an even multiple of one of the trapping frequencies along the x, y or z direction, the corresponding size of the condensate executes resonant oscillation. Using the concept of the differentiation matrix, the partial-differential GP equation is reduced to a set of coupled ordinary differential equations, which is solved by a fourth-order adaptive step-size control Runge-Kutta method. The pseudospectral method is contrasted with the finite-difference method for the same problem, where the time evolution is performed by the Crank-Nicholson algorithm. The latter method is illustrated to be more suitable for a three-dimensional standing-wave optical-lattice trapping potential.en
dc.publisherIop Publishing Ltd
dc.relation.ispartofJournal of Physics B: Atomic, Molecular and Optical Physics
dc.sourceWeb of Science
dc.titleBose-Einstein condensation dynamics in three dimensions by the pseudospectral and finite-difference methodsen
dcterms.rightsHolderIop Publishing Ltd
dc.contributor.institutionBharathidasan Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.description.affiliationBharathidasan Univ, Ctr Nonlinear Dynam, Dept Phys, Tiruchchirappalli 620024, Tamil Nadu, India
dc.description.affiliationUniv Estadual Paulista 1, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista 1, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt
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