Nonadditive thermostatistics and thermodynamics
arXiv:1209.5963 · doi:10.1088/1742-6596/394/1/012002
Abstract
Nonadditive composition rules for several physical quantities are treated in thermodynamics. It is argued that the zeroth law defines the existence of their additive forms, the formal logarithms. A further principle, the universal thermostat independence leads to a particular formal logarithm, equivalent to Tsallis entropy S_q. We connect q with generalized susceptibilities of the thermostat.
11 pages, 3 figures, SPMCS'12 Kazany