Phase transition of Two-timescale Two-temperature Spin-lattice Gas Model

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dc.creatorNakajima, C. H.
dc.creatorHukushima, K.
dc.date2008-07-29
dc.date.accessioned2026-07-07T09:53:28Z
dc.date.available2026-07-07T09:53:28Z
dc.descriptionWe study phase transition of a nonequilibrium statistical-mechanical model, in which two degrees of freedom with different time scales separated from each other touch to their own heat bath. A general condition for finding anomalous negative latent heat recently discovered is derived a from thermodynamic argument. As a specific example, phase diagram of a spin-lattice gas model is studied based on a mean-field analysis with replica method. While configurational variables are spin and particle in this model, it is found that the negative latent heat appears in a parameter region of the model, irrespective of the order of their time scale. Qualitative differences in the phase diagram are also discussed.
dc.description8 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0807.4601
dc.identifierhttp://arxiv.org/abs/0807.4601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/165967
dc.subjectDisordered Systems and Neural Networks
dc.subjectStatistical Mechanics
dc.titlePhase transition of Two-timescale Two-temperature Spin-lattice Gas Model
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