Volume 70, Number 4, May 2005
|Page(s)||439 - 445|
|Published online||13 April 2005|
Dynamical correlations as origin of nonextensive entropy
Instituto de Física, Universidade Federal do Rio de Janeiro C.P. 68528, 21945-970 Rio de Janeiro, RJ, Brazil
2 Institut für Theoretische Physik, University of Frankfurt - Frankfurt, Germany
Accepted: 23 March 2005
We present a simple and general argument showing that a class of dynamical correlations give rise to the so-called Tsallis nonextensive statistics. An example of a system having such a dynamics is given, exhibiting a non-Boltzmann energy distribution. A relation with prethermalization processes is discussed.
PACS: 05.70.-a – Thermodynamics / 05.90.+m – Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems
© EDP Sciences, 2005
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