Microcanonical Szilárd engines beyond the quasistatic regime

We discuss the possibility of extracting energy from a single thermal bath using microcanonical Szilárd engines operating in finite time. This extends previous works on the topic which are restricted to the quasistatic regime. The feedback protocol is implemented based on linear response predictions...

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Bibliographic Details
Published in:Physical review. E 2017-12, Vol.96 (6-1), p.062117-062117, Article 062117
Main Authors: Acconcia, Thiago V, Bonança, Marcus V S
Format: Article
Language:English
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Summary:We discuss the possibility of extracting energy from a single thermal bath using microcanonical Szilárd engines operating in finite time. This extends previous works on the topic which are restricted to the quasistatic regime. The feedback protocol is implemented based on linear response predictions of the excess work. It is claimed that the underlying mechanism leading to energy extraction does not violate Liouville's theorem and preserves ergodicity throughout the cycle. We illustrate our results with several examples including an exactly solvable model.
ISSN:2470-0045
2470-0053
DOI:10.1103/PhysRevE.96.062117