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Ensemble equivalence for non-Boltzmaniann distributions

AuthorsToral, Raúl
KeywordsJaynes principle
Long-range interactions
Issue Date3-Feb-2006
CitationPhysica A 365, 85-90 (2006)
AbstractWe discuss the possibility of using generalized canonical distributions, i.e., using other factors than exp(-βE), in order to compute the equilibrium properties of physical systems. It will be shown that some other choices can, in certain cases, lead to a simpler calculation of those properties. The corresponding equivalence between the canonical and the generalized canonical distributions is derived using well-known principles of statistical mechanics and we exemplify the method by deriving in a simple way the equilibrium properties of the long-range Ising model.
Description6 pages.-- Final full-text version of the paper available at: http://dx.doi.org/10.1016/j.physa.2006.01.040.
Appears in Collections:(IFISC) Artículos
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