Messanae Universitas Studiorum

Mesoscopic non-equilibrium thermodynamics

Rubi, José Miguel (2005) Mesoscopic non-equilibrium thermodynamics. In: Thermal theories of continua: survey and developments, September 25-30, 2005, Messina, Italy.

[img]
Preview
PDF
Download (103Kb) | Preview

    Abstract

    Basic concepts like energy, heat, and temperature have acquired a precise meaning after the development of thermodynamics. Thermodynamics provides the basis for understanding how heat and work are related and with the general rules that the macroscopic properties of systems at equilibrium follow. Outside equilibrium and away from macroscopic regimes most of those rules cannot be applied directly. In this paper we present recent developments that extend the applicability of thermodynamic concepts deep into mesoscopic and irreversible regimes. We show how the probabilistic interpretation of thermodynamics together with probability conservation laws can be used to obtain kinetic equations describing the evolution of the relevant degrees of freedom. This approach provides a systematic method to obtain the stochastic dynamics of a system directly from the knowledge of its equilibrium properties. A wide variety of situations can be studied in this way, including many that were thought to be out of reach of thermodynamic theories, such as non-linear transport in the presence of potential barriers, activated processes, slow relaxation phenomena, and basic processes in biomolecules, like translocation and stretching

    Item Type: Conference or Workshop Item (Paper)
    Subjects: M.U.S. - Contributi Scientifici > 02 - Scienze fisiche
    M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali
    Divisions: UNSPECIFIED
    Depositing User: Mr Nunzio Femminò
    Date Deposited: 07 Aug 2008
    Last Modified: 13 Apr 2010 13:15
    URI: http://cab.unime.it/mus/id/eprint/504

    Actions (login required)

    View Item