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Fluctuations of the total entropy production in stochastic systems

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Sylvain Joubaud
Nicolas Garnier
Sergio Ciliberto
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Abstract

Fluctuations of the excess heat in an out of equilibrium steady state are experimentally investigated in two stochastic systems : an electric circuit with an imposed mean current and a harmonic oscillator driven out of equilibrium by a periodic torque. In these two linear systems, we study excess heat that represents the difference between the dissipated heat out of equilibrium and the dissipated heat at equilibrium. Fluctuation theorem holds for the excess heat in the two experimental systems for all observation times and for all fluctuation magnitudes.
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Dates and versions

ensl-00187703 , version 1 (15-11-2007)
ensl-00187703 , version 2 (16-11-2007)
ensl-00187703 , version 3 (14-01-2008)

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Sylvain Joubaud, Nicolas Garnier, Sergio Ciliberto. Fluctuations of the total entropy production in stochastic systems. 2008. ⟨ensl-00187703v3⟩
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