Volume 65, Number 5, March 2004
|Page(s)||606 - 612|
|Published online||01 February 2004|
Temperature and pressure in nonextensive thermostatistics
Institut Supérieur des Matériaux et Mécaniques Avancés 44 Avenue F. A. Bartholdi, 72000 Le Mans, France
2 Laboratoire de Physique de l'état Condensé, Université du Maine 72000 Le Mans, France
Accepted: 17 December 2003
The definitions of temperature in the nonextensive statistical thermodynamics based on Tsallis entropy are analyzed. A definition of pressure is proposed for nonadditive systems by using a nonadditive effective volume. The thermodynamics of nonadditive photon gas is discussed on this basis. We show that the Stefan-Boltzmann law can be preserved within nonextensive thermodynamics.
PACS: 05.20.-y – Classical statistical mechanics / 05.70.-a – Thermodynamics / 02.50.-r – Probability theory, stochastic processes, and statistics
© EDP Sciences, 2004
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