39 Citations (Scopus)

Abstract

We derive entropy formulas for finite reservoir systems, Sq, from universal thermostat independence and obtain the functional form of the corresponding generalized entropy-probability relation. Our result interprets thermodynamically the subsystem temperature, T1, and the index q in terms of the temperature, T, entropy, S, and heat capacity, C of the reservoir as T1 = T exp(-S/C) and q = 1 - 1/C. In the infinite C limit, irrespective of the value of S, the Boltzmann-Gibbs approach is fully recovered. We apply this framework for the experimental determination of the original temperature of a finite thermostat, T, from the analysis of hadron spectra produced in high-energy collisions, by analyzing frequently considered simple models of the quark-gluon plasma.

Original languageEnglish
Article number110
Pages (from-to)2-5
Number of pages4
JournalEuropean Physical Journal A
Volume49
Issue number9
DOIs
Publication statusPublished - jan. 1 2013

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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