Fluctuation theorems for a molecular refrigerator

被引：67

作者：

Kim, Kyung Hyuk ^{[1
]}

Qian, Hong

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Univ Washington, Dept Math Appl, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW E | 2007年 / 75卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevE.75.022102

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We extend fluctuation theorems to a molecular refrigeration system that consists of Brownian particles in a heat bath under feedback control of their velocities. Such control can actively remove heat from the bath due to an entropy-pumping mechanism [Phys. Rev. Lett. 93, 120602 (2004)]. The presence of entropy pumping in an underdamped Brownian system modifies both the Jarzynski equality and the fluctuation theorems. We discover that the entropy pumping has a dual role of work and heat.

引用

页数：4

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