Ford, IJ;
(2015)
Maximum entropy principle for stationary states underpinned by stochastic thermodynamics.
Phys Rev E Stat Nonlin Soft Matter Phys
, 92
(5-1)
, Article 052142. 10.1103/PhysRevE.92.052142.
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Abstract
The selection of an equilibrium state by maximizing the entropy of a system, subject to certain constraints, is often powerfully motivated as an exercise in logical inference, a procedure where conclusions are reached on the basis of incomplete information. But such a framework can be more compelling if it is underpinned by dynamical arguments, and we show how this can be provided by stochastic thermodynamics, where an explicit link is made between the production of entropy and the stochastic dynamics of a system coupled to an environment. The separation of entropy production into three components allows us to select a stationary state by maximizing the change, averaged over all realizations of the motion, in the principal relaxational or nonadiabatic component, equivalent to requiring that this contribution to the entropy production should become time independent for all realizations. We show that this recovers the usual equilibrium probability density function (pdf) for a conservative system in an isothermal environment, as well as the stationary nonequilibrium pdf for a particle confined to a potential under nonisothermal conditions, and a particle subject to a constant nonconservative force under isothermal conditions. The two remaining components of entropy production account for a recently discussed thermodynamic anomaly between over- and underdamped treatments of the dynamics in the nonisothermal stationary state.
Type: | Article |
---|---|
Title: | Maximum entropy principle for stationary states underpinned by stochastic thermodynamics. |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevE.92.052142 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevE.92.052142 |
Language: | English |
Additional information: | © 2015 American Physical Society |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/1473599 |
1. | United States | 4 |
2. | China | 4 |
3. | Japan | 2 |
4. | Indonesia | 1 |
5. | United Kingdom | 1 |
6. | Russian Federation | 1 |
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