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Article Dans Une Revue Physical Review Letters Année : 2006

Work fluctuation theorems for harmonic oscillators

Résumé

The work fluctuations of an oscillator in contact with a thermostat and driven out of equilibrium by an external force are studied experimentally and theoretically within the context of Fluctuation Theorems (FTs). The oscillator dynamics is modeled by a second order Langevin equation. Both the transient and stationary state fluctuation theorems hold and the finite time corrections are very different from those of a first order Langevin equation. The periodic forcing of the oscillator is also studied; it presents new and unexpected short time convergences. Analytical expressions are given in all cases.
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Dates et versions

hal-00020597 , version 1 (13-03-2006)
hal-00020597 , version 2 (30-03-2006)

Identifiants

Citer

Frédéric Douarche, Sylvain Joubaud, Nicolas B. Garnier, Artyom Petrosyan, Sergio Ciliberto. Work fluctuation theorems for harmonic oscillators. Physical Review Letters, 2006, 97, pp.140603. ⟨10.1103/PhysRevLett.97.140603⟩. ⟨hal-00020597v2⟩
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