How to proceed with nonextensive systems at equilibrium?
Q. A. Wang, L. Nivanen, M. Pezeril, A. Le Méhauté
Abstract
In this paper, we show that 1) additive energy is not appropriate for discussing the validity of Tsallis or Rényi statistics for nonextensive systems at meta-equilibrium; 2) N-body systems with nonadditive energy or entropy should be described by generalized statistics whose nature is prescribed by the existence of thermodynamic stationarity. 3) the equivalence of Tsallis and Rényi entropies is in general not true.
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