Pathway Model, Superstatistics, Tsallis Statistics, and a Generalized Measure of Entropy

Details Pathway Model, Superstatistics, Tsallis Statistics, and a Generalized Measure of Entropy Pathway Model, Superstatistics, Tsallis Statistics, and a Generalized Measure of Entropy

2006-07-24

arxiv.org/abs/cond-mat/0607605v1

Physica A375 (2007) 110-122

Physics

Condensed Matter

Statistical Mechanics

LaTeX, 22 pages

Scientific paper

10.1016/j.physa.2006.09.002

The pathway model of Mathai (2005) is shown to be inferable from the maximization of a certain generalized entropy measure. This entropy is a variant of the generalized entropy of order 'alpha', considered in Mathai and Rathie (1975), and it is also associated with Shannon, Boltzmann-Gibbs, Renyi, Tsallis, and Havrda-Charvat entropies. The generalized entropy measure introduced here is also shown to haveinteresting statistical properties and it can be given probabilistic interpretations in terms of inaccuracy measure, expected value, and information content in a scheme. Particular cases of the pathway model are shown to be Tsallis statistics (Tsallis, 1988) and superstatistics introduced by Beck and Cohen (2003). The pathway model's connection to fractional calculus is illustrated by considering a fractional reaction equation.

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