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dc.contributor.authorKuhn, Carlos Claiton Noschangpt_BR
dc.contributor.authorGuan, Xi-Wenpt_BR
dc.contributor.authorFoerster, Angelapt_BR
dc.contributor.authorBatchelor, Murray T.pt_BR
dc.date.accessioned2014-10-15T02:12:27Zpt_BR
dc.date.issued2012pt_BR
dc.identifier.issn1050-2947pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/104547pt_BR
dc.description.abstractWe investigate universal thermodynamics and quantum criticality of spin-1 bosons with strongly repulsive density-density and antiferromagnetic spin-exchange interactions in a one-dimensional harmonic trap. From the equation of state, we find that a partially polarized core is surrounded by two wings composed of either spin-singlet pairs or a fully spin-aligned Tonks-Girardeau gas depending on the polarization. We describe how the scaling behavior of density profiles can reveal the universal nature of quantum criticality and map out the quantum phase diagram. We further show that at quantum criticality the dynamical critical exponent z = 2 and correlation length exponent ν = 1/2. This reveals a subtle resemblance to the physics of the spin-1/2 attractive Fermi gas.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. A, Atomic, molecular, and optical physics. New York. Vol. 86, no. 1 (July 2012), 011605, 4 p.pt_BR
dc.rightsOpen Accessen
dc.subjectMateriais antiferromagnéticospt_BR
dc.subjectEquações de estadopt_BR
dc.subjectExpoentes críticospt_BR
dc.subjectSistemas de bósonspt_BR
dc.subjectTransições magnéticaspt_BR
dc.titleQuantum criticality of spin-1 bosons in a one-dimensional harmonic trappt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000868087pt_BR
dc.type.originEstrangeiropt_BR


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