Stochastic Measures and Modular Evolution in Non-equilibrium Thermodynamics

Details Stochastic Measures and Modular Evolution in Non-equilibrium Thermodynamics Stochastic Measures and Modular Evolution in Non-equilibrium Thermodynamics

2009-08-15

arxiv.org/abs/0908.2156v1

Electronic Journal of Theoretical Physics (EJTP) 5, No. 17 (2008) 163-184

Physics

Mathematical Physics

22 pages,

Scientific paper

We present an application of the theory of stochastic processes to model and categorize non-equilibrium physical phenomena. The concepts of uniformly continuous probability measures and modular evolution lead to a systematic hierarchical structure for (physical) correlation functions and non-equilibrium thermodynamical potentials. It is proposed that macroscopic evolution equations (such as dynamic correlation functions) may be obtained from a non-equilibrium thermodynamical description, by using the fact that extended thermodynamical potentials belong to a certain class of statistical systems whose probability distribution functions are defined by a stationary measure; although a measure which is, in general, different from the equilibrium Gibbs measure. These probability measures obey a certain hierarchy on its stochastic evolution towards the most probable (stationary) measure. This in turns defines a convergence sequence. We propose a formalism which considers the mesoscopic stage (typical of non-local dissipative processes such as the ones described by extended irreversible thermodynamics) as being governed by stochastic dynamics due to the effect of non-equilibrium fluctuations. Some applications of the formalism are described.

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