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Thermodynamic stability conditions for nonadditive composable entropies

Tatsuaki Wada
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Abstract

The thermodynamic stability conditions (TSC) of nonadditive and composable entropies are discussed. Generally the concavity of a nonadditive entropy with respect to internal energy is not necessarily equivalent to the corresponding TSC. It is shown that both the TSC of Tsallis' entropy and that of the $κ$-generalized Boltzmann entropy are equivalent to the positivity of the standard heat capacity.

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Tatsuaki Wada. 2003-07-17. Thermodynamic stability conditions for nonadditive composable entropies. https://doi.org/10.1007/s00161-003-0156-y

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