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.

引用

页数：4

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