Generalized Entropies and Statistical Mechanics

Details Generalized Entropies and Statistical Mechanics Generalized Entropies and Statistical Mechanics

2004-09-01

arxiv.org/abs/cond-mat/0409037v2

Physics

Condensed Matter

Statistical Mechanics

combined with arXiv:cond-mat/0410554 for IMA Journal of Applied Math online Oct 2007

Scientific paper

We consider the problem of defining free energy and other thermodynamic functions when the entropy is given as a general function of the probablity distribution, including that for non extensive forms. We find that the free energy, which is central to the determination of all other quantities, can be obtained uniquely numerically ebven when it is the root of a transcendental equation. In particular we study the cases for Tsallis form and a new form proposed by us recently. We compare the free energy, the internal energy and the specific heat of a simple system two energy states for each of these forms.

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