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Entropy production in random billiards and the second law of thermodynamics. Feres, Renato
Description
A random dynamical system is said to be time-reversible if the sta- tistical properties of orbits do not change after reversing the arrow of time. The degree of irreversibility is captured by the notion of en- tropy production rate. A general formula for entropy production will be presented that applies to a class of thermal perturbations of bil- liard systems, for which it is meaningful to talk about energy exchange between billiard particle and boundary. This formula establishes a re- lation between the purely mathematical concept of entropy production rate and the physical concept of thermodynamic entropy. In particular, it recovers Clausius formulation of the second law of thermodynamics: the system must evolve so as to transfer energy from hot to cold. Fur- ther connections with stochastic thermodynamics will be illustrated with examples of simple "billiard thermal engines." This is joint work with Tim Chumley.
Item Metadata
Title |
Entropy production in random billiards and the second law of thermodynamics.
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2018-03-22T09:03
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Description |
A random dynamical system is said to be time-reversible if the sta-
tistical properties of orbits do not change after reversing the arrow of
time. The degree of irreversibility is captured by the notion of en-
tropy production rate. A general formula for entropy production will
be presented that applies to a class of thermal perturbations of bil-
liard systems, for which it is meaningful to talk about energy exchange
between billiard particle and boundary. This formula establishes a re-
lation between the purely mathematical concept of entropy production
rate and the physical concept of thermodynamic entropy. In particular,
it recovers Clausius formulation of the second law of thermodynamics:
the system must evolve so as to transfer energy from hot to cold. Fur-
ther connections with stochastic thermodynamics will be illustrated
with examples of simple "billiard thermal engines." This is joint work
with Tim Chumley.
|
Extent |
48.0 minutes
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Subject | |
Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Washington University
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Series | |
Date Available |
2020-12-07
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0395161
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Faculty
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International