Unattainability of Carnot efficiency in the Brownian heat engine
- 1 November 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 62 (5) , 6021-6025
- https://doi.org/10.1103/physreve.62.6021
Abstract
We discuss the reversibility of the Brownian heat engine. We perform an asymptotic analysis of the Kramers equation on a Büttiker-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.Keywords
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