Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries

Motivated by a recent disagreement about the claim that fluctuations in the free energy operator bound the charging power of a quantum battery, we present a critical analysis of the original derivation. The analysis shows that the above claim does not hold for both closed- and open-system dynamics....

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Autor principal: Shang-Yung Wang
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/c5a81deea29f4b04a70ffcc82ba9c4ad
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spelling oai:doaj.org-article:c5a81deea29f4b04a70ffcc82ba9c4ad2021-11-25T17:29:48ZFluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries10.3390/e231114551099-4300https://doaj.org/article/c5a81deea29f4b04a70ffcc82ba9c4ad2021-11-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1455https://doaj.org/toc/1099-4300Motivated by a recent disagreement about the claim that fluctuations in the free energy operator bound the charging power of a quantum battery, we present a critical analysis of the original derivation. The analysis shows that the above claim does not hold for both closed- and open-system dynamics. Our results indicate that the free energy operator is not a consistent quantifying operator for the work content of a charging quantum battery.Shang-Yung WangMDPI AGarticlefluctuationsfree energy operatorextractable workcharging powerquantum batteriesScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1455, p 1455 (2021)
institution DOAJ
collection DOAJ
language EN
topic fluctuations
free energy operator
extractable work
charging power
quantum batteries
Science
Q
Astrophysics
QB460-466
Physics
QC1-999
spellingShingle fluctuations
free energy operator
extractable work
charging power
quantum batteries
Science
Q
Astrophysics
QB460-466
Physics
QC1-999
Shang-Yung Wang
Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
description Motivated by a recent disagreement about the claim that fluctuations in the free energy operator bound the charging power of a quantum battery, we present a critical analysis of the original derivation. The analysis shows that the above claim does not hold for both closed- and open-system dynamics. Our results indicate that the free energy operator is not a consistent quantifying operator for the work content of a charging quantum battery.
format article
author Shang-Yung Wang
author_facet Shang-Yung Wang
author_sort Shang-Yung Wang
title Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
title_short Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
title_full Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
title_fullStr Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
title_full_unstemmed Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
title_sort fluctuations in extractable work and bounds on the charging power of quantum batteries
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/c5a81deea29f4b04a70ffcc82ba9c4ad
work_keys_str_mv AT shangyungwang fluctuationsinextractableworkandboundsonthechargingpowerofquantumbatteries
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