Physics – Mathematical Physics
Scientific paper
2003-04-10
Physics
Mathematical Physics
23 pages, no figures, extensively revised (added comment on zeroth law of thermodynamics)
Scientific paper
An unified thermodynamical framework based in the use of a generalized Massieu-Planck thermodynamic potential is proposed and a new formulation of Boltzmann-Gibbs Statistical Mechanics is established. Under this philosophy a generalization of (classical) Boltzmann-Gibbs thermostatistics is suggested and connected to recent nonextensive statistics formulations. This is accomplished by defining a convenient squeezing function which restricts among the collections of Boltzmann-Gibbs configurations of the complete equilibrium closure. The formalism embodies Beck-Cohen superstatistics and a direct connection with the nonlinear kinetic theory due to Kaniadakis is provided, being the treatment presented fully consistent with it. As an example Tsallis nonextensive statistics is completely rebuilt into our formulation adding new insights (zeroth law of thermodynamics, non ad hoc definition of the mean value of a physical quantity,...). We relate all the formal development to physical and measurable quantities and suggest a way to establish the relevant statistics of any system based on determinations of temperature.
Garcia-Morales Vladimir
Pellicer J.
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