Entropy production theorems and some consequences

Details Entropy production theorems and some consequences Entropy production theorems and some consequences

2009-03-24

arxiv.org/abs/0903.4147v2

Phys. Rev. E 80, 011117 (2009)

Physics

Condensed Matter

Statistical Mechanics

12 pages, 3 figures

Scientific paper

The total entropy production fluctuations are studied in some exactly solvable models. For these systems, the detailed fluctuation theorem holds even in the transient state, provided initially the system is prepared in thermal equilibrium. The nature of entropy production during the relaxation of a system to equilibrium is analyzed. The averaged entropy production over a finite time interval gives a better bound for the average work performed on the system than that obtained from the well known Jarzynski equality. Moreover, the average entropy production as a quantifier for information theoretic nature of irreversibility for finite time nonequilibrium processes is discussed.

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