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Temperature and pressure in nonextensive thermostatistics

Qiuping A. Wang, Laurent Nivanen, Alain Le Mehaute, Michel Pezeril

physics.data-anarXiv:physics/0311034

Abstract

The definitions of the 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.

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