Localization of a Bose-Einstein condensate in a bichromatic optical lattice

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAdhikari, S. K.
dc.creatorSalasnich, L.
dc.date2014-05-27T11:23:57Z
dc.date2016-10-25T18:27:11Z
dc.date2014-05-27T11:23:57Z
dc.date2016-10-25T18:27:11Z
dc.date2009-08-11
dc.date.accessioned2017-04-06T01:36:44Z
dc.date.available2017-04-06T01:36:44Z
dc.identifierPhysical Review A - Atomic, Molecular, and Optical Physics, v. 80, n. 2, 2009.
dc.identifier1050-2947
dc.identifier1094-1622
dc.identifierhttp://hdl.handle.net/11449/71105
dc.identifierhttp://acervodigital.unesp.br/handle/11449/71105
dc.identifier10.1103/PhysRevA.80.023606
dc.identifier2-s2.0-68949098521.pdf
dc.identifier2-s2.0-68949098521
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.80.023606
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/892128
dc.descriptionBy direct numerical simulation of the time-dependent Gross-Pitaevskii equation, we study different aspects of the localization of a noninteracting ideal Bose-Einstein condensate (BEC) in a one-dimensional bichromatic quasiperiodic optical-lattice potential. Such a quasiperiodic potential, used in a recent experiment on the localization of a BEC, can be formed by the superposition of two standing-wave polarized laser beams with different wavelengths. We investigate the effect of the variation of optical amplitudes and wavelengths on the localization of a noninteracting BEC. We also simulate the nonlinear dynamics when a harmonically trapped BEC is suddenly released into a quasiperiodic potential, as done experimentally in a laser speckle potential. We finally study the destruction of the localization in an interacting BEC due to the repulsion generated by a positive scattering length between the bosonic atoms. © 2009 The American Physical Society.
dc.languageeng
dc.relationPhysical Review A: Atomic, Molecular, and Optical Physics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBose-Einstein condensates
dc.subjectBosonic atoms
dc.subjectLaser speckle
dc.subjectNon-linear dynamics
dc.subjectOne-dimensional
dc.subjectOptical amplitudes
dc.subjectOptical lattices
dc.subjectOptical-lattice potential
dc.subjectPolarized laser beams
dc.subjectQuasi-periodic
dc.subjectQuasiperiodic potential
dc.subjectScattering length
dc.subjectTime-dependent Gross-Pitaevskii equation
dc.subjectBose-Einstein condensation
dc.subjectComputer simulation languages
dc.subjectLaser beams
dc.subjectSpeckle
dc.subjectSteam condensers
dc.subjectLight transmission
dc.titleLocalization of a Bose-Einstein condensate in a bichromatic optical lattice
dc.typeOtro


Este ítem pertenece a la siguiente institución