Unattainability of Carnot efficiency in the Brownian heat engine

被引：87

作者：

Hondou, T ^{[1
]}

Sekimoto, K

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

来源：

PHYSICAL REVIEW E | 2000年 / 62卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.62.6021

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 discuss the reversibility of the Brownian heat engine. We perform an asymptotic analysis of the Kramers equation on a Buttiker-Landauer system and show quantitatively that Carnot efficiency is unattainable even in the fully overdamped limit. The unattainability is attributed to inevitable irreversible heat flow over the temperature boundary.

引用

页码：6021 / 6025

页数：5

共 17 条

[1]

BARROW GM, 1979, PHYSICAL CHEM

[2] TRANSPORT AS A CONSEQUENCE OF STATE-DEPENDENT DIFFUSION [J].