Temperature and pressure in nonextensive thermostatistics
arXiv:physics/0311034 · doi:10.1209/epl/i2003-10171-6
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.
Eur. Phys. Lett. (2003), in press