Thermalization of a Lipkin-Meshkov-Glick model coupled to a bosonic bath

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dc.contributor.authorLouw, Jan C.en_ZA
dc.contributor.authorKriel, Johannes N.en_ZA
dc.contributor.authorKastner, Michaelen_ZA
dc.date.accessioned2021-10-04T07:02:43Z
dc.date.available2021-10-04T07:02:43Z
dc.date.issued2019
dc.descriptionCITATION: Louw, J. C., Kriel, J. N & Kastner, M. 2019. Thermalization of a Lipkin-Meshkov-Glick model coupled to a bosonic bath. Physical Review A, 100(2):022115, doi:10.1103/PhysRevA.100.022115.
dc.descriptionThe original publication is available at http://journals.aps.org/pra
dc.description.abstractWe derive a Lindblad master equation that approximates the dynamics of a Lipkin-Meshkov-Glick (LMG) model weakly coupled to a bosonic bath. By studying the time evolution of operators under the adjoint master equation we prove that, for large system sizes, these operators attain their thermal equilibrium expectation values in the long-time limit, and we calculate the rate at which these values are approached. Integrability of the LMG model prevents thermalization in the absence of a bath, and our work provides an explicit proof that the bath indeed restores thermalization. Imposing thermalization on this otherwise nonthermalizing model outlines an avenue towards probing the unconventional thermodynamic properties predicted to occur in ultracold-atom-based realizations of the LMG model.en_ZA
dc.description.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.100.022115
dc.description.versionPublisher's version
dc.format.extent9 pages
dc.identifier.citationLouw, J. C., Kriel, J. N & Kastner, M. 2019. Thermalization of a Lipkin-Meshkov-Glick model coupled to a bosonic bath. Physical Review A, 100(2):022115, doi:10.1103/PhysRevA.100.022115
dc.identifier.issn2469-9934 (online)
dc.identifier.issn2469-9926 (print)
dc.identifier.otherdoi:10.1103/PhysRevA.100.022115
dc.identifier.urihttp://hdl.handle.net/10019.1/123116
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Physical Society
dc.rights.holderAmerican Physical Society
dc.subjectThermalizationen_ZA
dc.subjectThermodynamic equilibriumen_ZA
dc.subjectBosonsen_ZA
dc.subjectNuclear spinen_ZA
dc.subjectQuantum systemsen_ZA
dc.subjectNuclear spinen_ZA
dc.titleThermalization of a Lipkin-Meshkov-Glick model coupled to a bosonic bathen_ZA
dc.typeArticleen_ZA
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