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Entropy 2017, 19(3), 110; doi:10.3390/e19030110

The Gibbs Paradox, the Landauer Principle and the Irreversibility Associated with Tilted Observers

Instituto Universitario de Física Fundamental y Matemáticas, Universidad de Salamanca, Salamanca 37007, Spain
Academic Editors: Lawrence P. Horwitz and Asher Yahalom
Received: 10 February 2017 / Revised: 6 March 2017 / Accepted: 9 March 2017 / Published: 11 March 2017
(This article belongs to the Special Issue Advances in Relativistic Statistical Mechanics)
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Abstract

It is well known that, in the context of General Relativity, some spacetimes, when described by a congruence of comoving observers, may consist of a distribution of a perfect (non–dissipative) fluid, whereas the same spacetime as seen by a “tilted” (Lorentz–boosted) congruence of observers may exhibit the presence of dissipative processes. As we shall see, the appearance of entropy-producing processes are related to the high dependence of entropy on the specific congruence of observers. This fact is well illustrated by the Gibbs paradox. The appearance of such dissipative processes, as required by the Landauer principle, are necessary in order to erase the different amount of information stored by comoving observers, with respect to tilted ones. View Full-Text
Keywords: tilted spacetimes; irreversibility; dissipative procceses tilted spacetimes; irreversibility; dissipative procceses
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Herrera, L. The Gibbs Paradox, the Landauer Principle and the Irreversibility Associated with Tilted Observers. Entropy 2017, 19, 110.

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