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Experimental demonstration of quantum effects in the operation of microscopic heat engines

Experimental demonstration of quantum effects in the operation of microscopic heat engines
Experimental demonstration of quantum effects in the operation of microscopic heat engines
The ability of the internal states of a working fluid to be in a coherent superposition is one of the basic properties of a quantum heat engine. It was recently predicted that in the regime of small engine action, this ability can enable a quantum heat engine to produce more power than any equivalent classical heat engine. It was also predicted that in the same regime, the presence of such internal coherence causes different types of quantum heat engines to become thermodynamically equivalent. Here, we use an ensemble of nitrogen vacancy centers in diamond for implementing two types of quantum heat engines, and experimentally observe both effects.
0031-9007
1-6
Klatzow, James
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Becker, Jonas N.
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Ledingham, Patrick M.
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Weinzetl, Christian
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Kaczmarek, Krzysztof T.
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Saunders, Dylan J.
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Nunn, Joshua
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Walmsley, Ian A.
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Uzdin, Raam
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Poem, Eilon
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Klatzow, James
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Becker, Jonas N.
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Ledingham, Patrick M.
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Weinzetl, Christian
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Kaczmarek, Krzysztof T.
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Saunders, Dylan J.
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Nunn, Joshua
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Walmsley, Ian A.
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Uzdin, Raam
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Poem, Eilon
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Klatzow, James, Becker, Jonas N., Ledingham, Patrick M., Weinzetl, Christian, Kaczmarek, Krzysztof T., Saunders, Dylan J., Nunn, Joshua, Walmsley, Ian A., Uzdin, Raam and Poem, Eilon (2019) Experimental demonstration of quantum effects in the operation of microscopic heat engines. Physical Review Letters, 122 (11), 1-6, [110601]. (doi:10.1103/PhysRevLett.122.110601).

Record type: Article

Abstract

The ability of the internal states of a working fluid to be in a coherent superposition is one of the basic properties of a quantum heat engine. It was recently predicted that in the regime of small engine action, this ability can enable a quantum heat engine to produce more power than any equivalent classical heat engine. It was also predicted that in the same regime, the presence of such internal coherence causes different types of quantum heat engines to become thermodynamically equivalent. Here, we use an ensemble of nitrogen vacancy centers in diamond for implementing two types of quantum heat engines, and experimentally observe both effects.

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Experimental demonstration of quantum effects in the operation of microscopic heat engines - Accepted Manuscript
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Accepted/In Press date: 7 January 2019
Published date: 20 March 2019
Additional Information: arxiv is am

Identifiers

Local EPrints ID: 443898
URI: http://eprints.soton.ac.uk/id/eprint/443898
ISSN: 0031-9007
PURE UUID: 986ae098-9b54-4f0f-a3ed-1298b36fef4c

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Date deposited: 16 Sep 2020 16:34
Last modified: 06 Oct 2020 18:42

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Contributors

Author: James Klatzow
Author: Jonas N. Becker
Author: Christian Weinzetl
Author: Krzysztof T. Kaczmarek
Author: Dylan J. Saunders
Author: Joshua Nunn
Author: Ian A. Walmsley
Author: Raam Uzdin
Author: Eilon Poem

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