Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations

Many works have been devoted to show that Thermodynamics and Statistical Physics can be rigorously deduced from an exact underlying classical Hamiltonian dynamics, and to resolve the related paradoxes. In particular, the concept of equilibrium state and the derivation of Master Equations should resu...

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Autores principales: Moreau, Michel, Gaveau, Bernard
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Publicado: IntechOpen 2021
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Acceso en línea:https://www.intechopen.com/chapters/75310
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author Moreau, Michel
Gaveau, Bernard
author_browse Gaveau, Bernard
Moreau, Michel
author_facet Moreau, Michel
Gaveau, Bernard
author_sort Moreau, Michel
building IntechOpen
collection Acceso abierto
description Many works have been devoted to show that Thermodynamics and Statistical Physics can be rigorously deduced from an exact underlying classical Hamiltonian dynamics, and to resolve the related paradoxes. In particular, the concept of equilibrium state and the derivation of Master Equations should result from purely Hamiltonian considerations. In this chapter, we reexamine this problem, following the point of view developed by Kolmogorov more than 60 years ago, in great part known from the work published by Arnold and Avez in 1967. Our setting is a discrete time dynamical system, namely the successive iterations of a measure-preserving mapping on a measure space, generalizing Hamiltonian dynamics in phase space. Using the notion of Kolmogorov entropy and martingale theory, we prove that a coarse-grained description both in space and in time leads to an approximate Master Equation satisfied by the probability distribution of partial histories of the coarse-grained state.
doi_str_mv 10.5772/intechopen.95903
first_indexed 2026-10-15T21:39:10Z
format Book Chapter
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spelling intech-753102021-02-18 Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations Michel Moreau Bernard Gaveau Physical Sciences, Engineering and Technology Many works have been devoted to show that Thermodynamics and Statistical Physics can be rigorously deduced from an exact underlying classical Hamiltonian dynamics, and to resolve the related paradoxes. In particular, the concept of equilibrium state and the derivation of Master Equations should result from purely Hamiltonian considerations. In this chapter, we reexamine this problem, following the point of view developed by Kolmogorov more than 60 years ago, in great part known from the work published by Arnold and Avez in 1967. Our setting is a discrete time dynamical system, namely the successive iterations of a measure-preserving mapping on a measure space, generalizing Hamiltonian dynamics in phase space. Using the notion of Kolmogorov entropy and martingale theory, we prove that a coarse-grained description both in space and in time leads to an approximate Master Equation satisfied by the probability distribution of partial histories of the coarse-grained state. IntechOpen 2021-02-18 Chapter, Part Of Book https://www.intechopen.com/chapters/75310 doi:10.5772/intechopen.95903 en ISBN:978-1-83969-123-2 https://creativecommons.org/licenses/by/3.0/ https://www.intechopen.com/books/10471 ; Advances in Dynamical Systems Theory, Models, Algorithms and Applications
spellingShingle Physical Sciences, Engineering and Technology
Moreau, Michel
Gaveau, Bernard
Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations
title Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations
title_full Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations
title_fullStr Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations
title_full_unstemmed Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations
title_short Stochastic Theory of Coarse-Grained Deterministic Systems: Martingales and Markov Approximations
title_sort stochastic theory of coarse grained deterministic systems martingales and markov approximations
topic Physical Sciences, Engineering and Technology
url https://www.intechopen.com/chapters/75310
work_keys_str_mv AT moreaumichel stochastictheoryofcoarsegraineddeterministicsystemsmartingalesandmarkovapproximations
AT gaveaubernard stochastictheoryofcoarsegraineddeterministicsystemsmartingalesandmarkovapproximations