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Thermodynamic non-additivity in disordered systems

E. V. Vakarin, J. P. Badiali

cond-mat.stat-mecharXiv:cond-mat/0305554

Abstract

It is shown that there is a mapping of the replica approach to disordered systems with finite replica index n on the Tsallis non-extensive statistics, if the average thermodynamic entropy differs from the information entropy for the probability distribution. In the case of incomplete information the entropic index q=1-n is shown to be related to the degree of lost information.

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