Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2003-05-16
Physics
Condensed Matter
Statistical Mechanics
11 pages, TeX, no figure, accepted by Chaos, Solitons & Fractals (2005)
Scientific paper
The nonextensive statistics based on the $q$-entropy $S_q=-\frac{\sum_{i=1}^v(p_i-p_i^q)}{1-q}$ has been so far applied to systems in which the $q$ value is uniformly distributed. For the systems containing different $q$'s, the applicability of the theory is still a matter of investigation. The difficulty is that the class of systems to which the theory can be applied is actually limited by the usual nonadditivity rule of entropy which is no more valid when the systems contain non uniform distribution of $q$ values. In this paper, within the framework of the so called incomplete information theory, we propose a more general nonadditivity rule of entropy prescribed by the zeroth law of thermodynamics. This new nonadditivity generalizes in a simple way the usual one and can be proved to lead uniquely to the $q$-entropy.
Mehaute Alain Le
Nivanen Laurent
Pezeril Michel
Wang Qiuping A.
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