Work fluctuation theorems for harmonic oscillators

被引：134
作者：
Douarche, F. [1 ]
Joubaud, S. [1 ]
Garnier, N. B. [1 ]
Petrosyan, A. [1 ]
Ciliberto, S. [1 ]
机构：
[1] Ecole Normale Super Lyon, CNRS, UMR 5672, Phys Lab, F-69364 Lyon 07, France
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 14期
关键词：
D O I：
10.1103/PhysRevLett.97.140603
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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. 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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页数：4
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