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Non-extensive thermodynamics and stationary processes of localization

Leone Fronzoni·Paolo Grigolini·Simone Montangero
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Abstract

We focus our attention on dynamical processes characterized by an entropic index Q<1. According to the probabilistic arguments of Tsallis and Bukman [C.Tsallis, D.J. Bukman, Phys. Rev. E 54,R2197 (1996)] these processes are subdiffusional in nature. The non-extensive generalization of the Kolmogorov-Sinai entropy yielding the same entropic index implies the stationary condition. We note, on the other hand, that enforcing the stationary property on subdiffusion has the effect of producing a localization process occurring within a finite time scale. We thus conclude that the stationary dynamic processes with Q<1 must undergo a localization process occurring at finite time. We check the validity of this conclusion by means of a numerical treatment of the dynamics of the logistic map at the critical point.

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Leone Fronzoni, Paolo Grigolini, Simone Montangero. 1999-07-29. Non-extensive thermodynamics and stationary processes of localization. https://doi.org/10.1016/s0960-0779(99)00163-0

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