Self-trapping of Fermi and Bose gases under spatially modulated repulsive nonlinearity and transverse confinement

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorYoung-S., Luis E.
dc.creatorSalasnich, L.
dc.creatorMalomed, Boris A.
dc.date2014-05-27T11:28:51Z
dc.date2016-10-25T18:46:50Z
dc.date2014-05-27T11:28:51Z
dc.date2016-10-25T18:46:50Z
dc.date2013-04-04
dc.date.accessioned2017-04-06T02:19:51Z
dc.date.available2017-04-06T02:19:51Z
dc.identifierPhysical Review A - Atomic, Molecular, and Optical Physics, v. 87, n. 4, 2013.
dc.identifier1050-2947
dc.identifier1094-1622
dc.identifierhttp://hdl.handle.net/11449/75066
dc.identifierhttp://acervodigital.unesp.br/handle/11449/75066
dc.identifier10.1103/PhysRevA.87.043603
dc.identifierWOS:000317192800008
dc.identifier2-s2.0-84876103027.pdf
dc.identifier2-s2.0-84876103027
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.87.043603
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/895817
dc.descriptionWe show that self-localized ground states can be created in the spin-balanced gas of fermions with repulsion between the spin components, whose strength grows from the center to periphery, in combination with the harmonic-oscillator (HO) trapping potential acting in one or two transverse directions. We also consider the ground state in the noninteracting Fermi gas under the action of the spatially growing tightness of the one- or two-dimensional (1D or 2D) HO confinement. These settings are considered in the framework of the Thomas-Fermi-von Weizsäcker (TF-vW) density functional. It is found that the vW correction to the simple TF approximation (the gradient term) is nearly negligible in all situations. The properties of the ground state under the action of the 2D and 1D HO confinement with the tightness growing in the transverse directions are investigated too for the Bose-Einstein condensate with the self-repulsive nonlinearity. © 2013 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.subjectDensity functionals
dc.subjectGradient terms
dc.subjectSpatially modulated
dc.subjectSpin components
dc.subjectTransverse confinement
dc.subjectTransverse directions
dc.subjectTrapping potential
dc.subjectElectron gas
dc.subjectGround state
dc.subjectStatistical mechanics
dc.subjectFermions
dc.titleSelf-trapping of Fermi and Bose gases under spatially modulated repulsive nonlinearity and transverse confinement
dc.typeOtro


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