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Journal Articles JSTAT Year : 2008

## Thermodynamic time asymmetry in nonequilibrium fluctuations

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David Andrieux
• Function : Author
• PersonId : 839690
Sergio Ciliberto
• Function : Author
• PersonId : 829236
Nicolas Garnier
Pierre Gaspard
• Function : Author
• PersonId : 839030
Sylvain Joubaud
Artyom Petrosyan
• Function : Author
• PersonId : 830551

#### Abstract

We here present the complete analysis of experiments on driven Brownian motion and electric noise in a $RC$ circuit, showing that thermodynamic entropy production can be related to the breaking of time-reversal symmetry in the statistical description of these nonequilibrium systems. The symmetry breaking can be expressed in terms of dynamical entropies per unit time, one for the forward process and the other for the time-reversed process. These entropies per unit time characterize dynamical randomness, i.e., temporal disorder, in time series of the nonequilibrium fluctuations. Their difference gives the well-known thermodynamic entropy production, which thus finds its origin in the time asymmetry of dynamical randomness, alias temporal disorder, in systems driven out of equilibrium.

### Dates and versions

ensl-00180234 , version 1 (18-10-2007)
ensl-00180234 , version 2 (18-10-2007)
ensl-00180234 , version 3 (26-11-2007)

### Identifiers

• HAL Id : ensl-00180234 , version 3
• ARXIV :

### Cite

David Andrieux, Sergio Ciliberto, Nicolas Garnier, Pierre Gaspard, Sylvain Joubaud, et al.. Thermodynamic time asymmetry in nonequilibrium fluctuations. JSTAT, 2008, P01002, pp.10. ⟨ensl-00180234v3⟩

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