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

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dc.contributor.authorYoung-S., Luis E. [UNESP]
dc.contributor.authorSalasnich, L.
dc.contributor.authorMalomed, Boris A.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversità di Padova
dc.contributor.institutionTel Aviv University
dc.date.accessioned2014-05-27T11:28:51Z
dc.date.available2014-05-27T11:28:51Z
dc.date.issued2013-04-04
dc.description.abstractWe 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.en
dc.description.affiliationInstituto de Física Teórica UNESP-Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo
dc.description.affiliationDipartimento di Fisica e Astromia Galileo Galilei CNISM Università di Padova, ia Marzolo 8, 35131 Padova
dc.description.affiliationDepartment of Physical Electronics School of Electrical Engineering Tel Aviv University, Tel Aviv 69978
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.87.043603
dc.identifier.citationPhysical Review A - Atomic, Molecular, and Optical Physics, v. 87, n. 4, 2013.
dc.identifier.doi10.1103/PhysRevA.87.043603
dc.identifier.file2-s2.0-84876103027.pdf
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.scopus2-s2.0-84876103027
dc.identifier.urihttp://hdl.handle.net/11449/75066
dc.identifier.wosWOS:000317192800008
dc.language.isoeng
dc.relation.ispartofPhysical Review A: Atomic, Molecular, and Optical Physics
dc.relation.ispartofsjr1,288
dc.relation.ispartofsjr1,288
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
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 confinementen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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