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Maxwell demons in phase space

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Rodríguez Parrondo, Juan Manuel and Granger, Léo (2015) Maxwell demons in phase space. European Physical Journal-Special Topics, 224 (5). pp. 865-875. ISSN 1951-6355

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Official URL: http://dx.doi.org/10.1140/epjst/e2015-02432-9


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Abstract

Although there is not a complete "proof" of the second law of thermodynamics based on microscopic dynamics, two properties of Hamiltonian systems have been used to prove the impossibility of work extraction from a single thermal reservoir: Liouville's theorem and the adiabatic invariance of the volume enclosed by an energy shell. In this paper we analyze these two properties in the Szilard engine and other systems related with the Maxwell demon. In particular, we recall that the enclosed volume is no longer an adiabatic invariant in non ergodic systems and explore the consequences of this on the second law. This article is supplemented with comments by H. Ouerdane and Lawrence S. Schulman and a final reply by the authors.


Item Type:Article
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© 2015 Springer Heidelberg.
This work has been financially supported by Grant ENFASIS (FIS2011-22644, Spanish Government).

Uncontrolled Keywords:Symmetry-breaking; Thermodynamics; Information; Entropy; Energy.
Subjects:Sciences > Physics > Nuclear physics
ID Code:32935
Deposited On:28 Aug 2015 07:29
Last Modified:10 Dec 2018 14:57

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