Mixing-demixing transition and collapse of a vortex state in a quasi-two-dimensional boson-fermion mixture

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dc.contributor.authorAdhikari, Sadhan K.
dc.contributor.authorSalasnich, Luca
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Padua
dc.date.accessioned2014-05-20T14:07:59Z
dc.date.available2014-05-20T14:07:59Z
dc.date.issued2007-05-01
dc.description.abstractWe investigate the mixing-demixing transition and the collapse in a quasi-two-dimensional degenerate boson-fermion mixture (DBFM) with a bosonic vortex. We solve numerically a quantum-hydrodynamic model based on a new density functional which accurately takes into account the dimensional crossover. It is demonstrated that with the increase of interspecies repulsion, a mixed state of DBFM could turn into a demixed state. The system collapses for interspecies attraction above a critical value which depends on the vortex quantum number. For interspecies attraction just below this critical limit there is almost complete mixing of boson and fermion components. Such mixed and demixed states of a DBFM could be experimentally realized by varying an external magnetic field near a boson-fermion Feshbach resonance, which will result in a continuous variation of interspecies interaction.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUniv Padua, Dipartimento Fis Galileo Galilei, CNISM, I-35131 Padua, Italy
dc.description.affiliationUniv Padua, Dipartimento Fis Galileo Galilei, CNR, INFM, I-35131 Padua, Italy
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.format.extent9
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.75.053603
dc.identifier.citationPhysical Review A. College Pk: Amer Physical Soc, v. 75, n. 5, 9 p., 2007.
dc.identifier.doi10.1103/PhysRevA.75.053603
dc.identifier.fileWOS000246890400132.pdf
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/11449/23842
dc.identifier.wosWOS:000246890400132
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review A
dc.relation.ispartofsjr1,288
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleMixing-demixing transition and collapse of a vortex state in a quasi-two-dimensional boson-fermion mixtureen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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