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Phys Rev Lett. 2001 Nov 26;87(22):220601. Epub 2001 Nov 12.

Extracting work from a single thermal bath via quantum negentropy.

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1
Department of Physics and Institute for Quantum Studies, Texas A&M University, College Station, Texas 77843, USA.

Abstract

Classical heat engines produce work by operating between a high temperature energy source and a low temperature entropy sink. The present quantum heat engine has no cooler reservoir acting as a sink of entropy but has instead an internal reservoir of negentropy which allows extraction of work from one thermal bath. The process is attended by constantly increasing entropy and does not violate the second law of thermodynamics.

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