Quantum criticality of spin-1 bosons in a one-dimensional harmonic trap
dc.contributor.author | Kuhn, Carlos Claiton Noschang | pt_BR |
dc.contributor.author | Guan, Xi-Wen | pt_BR |
dc.contributor.author | Foerster, Angela | pt_BR |
dc.contributor.author | Batchelor, Murray T. | pt_BR |
dc.date.accessioned | 2014-10-15T02:12:27Z | pt_BR |
dc.date.issued | 2012 | pt_BR |
dc.identifier.issn | 1050-2947 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/104547 | pt_BR |
dc.description.abstract | We 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.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. A, Atomic, molecular, and optical physics. New York. Vol. 86, no. 1 (July 2012), 011605, 4 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Materiais antiferromagnéticos | pt_BR |
dc.subject | Equações de estado | pt_BR |
dc.subject | Expoentes críticos | pt_BR |
dc.subject | Sistemas de bósons | pt_BR |
dc.subject | Transições magnéticas | pt_BR |
dc.title | Quantum criticality of spin-1 bosons in a one-dimensional harmonic trap | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000868087 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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