English

Generalized information entropies depending only on the probability distribution

Statistical Mechanics 2015-06-05 v1

Abstract

Systems with a long-term stationary state that possess as a spatio-temporally fluctuation quantity β\beta can be described by a superposition of several statistics, a "super statistics". We consider first, the Gamma, log-normal and FF-distributions of β\beta. It is assumed that they depend only on plp_l, the probability associated with the microscopic configuration of the system. For each of the three β\beta-distributions we calculate the Boltzmann factors and show that they coincide for small variance of the fluctuations. For the Gamma distribution it is possible to calculate the entropy in a closed form, depending on plp_l, and to obtain then an equation relating plp_l with βEl\beta E_l. We also propose, as other examples, new entropies close related with the Kaniadakis and two possible Sharma-Mittal entropies. The entropies presented in this work do not depend on a constant parameter qq but on plp_l. For the plp_l-Gamma distribution and its corresponding Bpl(E)B_{p_l}(E) Boltzmann factor and the associated entropy, we show the validity of the saddle-point approximation. We also briefly discuss the generalization of one of the four Khinchin axioms to get this proposed entropy.

Keywords

Cite

@article{arxiv.1206.3353,
  title  = {Generalized information entropies depending only on the probability distribution},
  author = {O. Obregón and A. Gil-Villegas},
  journal= {arXiv preprint arXiv:1206.3353},
  year   = {2015}
}

Comments

13 pages, 3 figures

R2 v1 2026-06-21T21:19:49.138Z