Superstatistics and Lifetime

Details Superstatistics and Lifetime Superstatistics and Lifetime

2004-04-15

arxiv.org/abs/cond-mat/0404357v1

Physics

Condensed Matter

Statistical Mechanics

15 pages, 4 figures, PDF

Scientific paper

To describe the nonequilibrium states of a system we introduce a new thermodynamic parameter - the lifetime of a system. The statistical distributions which can be obtained out of the mesoscopic description characterizing the behaviour of a system by specifying the stochastic processes are written. Superstatistics, introduced in [1] as fluctuating quantities of intensive thermodynamical parameters, are obtained from statistical distribution with lifetime (random time to system degeneracy) as thermodynamical parameter (and also generalization of superstatistics). Necessary for this realization condition with expression for average lifetime of equilibrium statistical system obtained from stochastical storage model [25] is consist. The obtained distribution passes in Gibbs or in superstatistics distribution depending on a measure of dissipativity in the system.

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