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Article

Efficiency Fluctuations in a Quantum Battery Charged by a Repeated Interaction Process

Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago 8370415, Chile
Entropy 2022, 24(6), 820; https://doi.org/10.3390/e24060820
Submission received: 18 May 2022 / Revised: 5 June 2022 / Accepted: 7 June 2022 / Published: 13 June 2022
(This article belongs to the Special Issue Quantum Collision Models)

Abstract

A repeated interaction process assisted by auxiliary thermal systems charges a quantum battery. The charging energy is supplied by switching on and off the interaction between the battery and the thermal systems. The charged state is an equilibrium state for the repeated interaction process, and the ergotropy characterizes its charge. The working cycle consists in extracting the ergotropy and charging the battery again. We discuss the fluctuating efficiency of the process, among other fluctuating properties. These fluctuations are dominated by the equilibrium distribution and depend weakly on other process properties.
Keywords: quantum collision models; ergotropy; quantum batteries; efficiency fluctuations quantum collision models; ergotropy; quantum batteries; efficiency fluctuations

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MDPI and ACS Style

Barra, F. Efficiency Fluctuations in a Quantum Battery Charged by a Repeated Interaction Process. Entropy 2022, 24, 820. https://doi.org/10.3390/e24060820

AMA Style

Barra F. Efficiency Fluctuations in a Quantum Battery Charged by a Repeated Interaction Process. Entropy. 2022; 24(6):820. https://doi.org/10.3390/e24060820

Chicago/Turabian Style

Barra, Felipe. 2022. "Efficiency Fluctuations in a Quantum Battery Charged by a Repeated Interaction Process" Entropy 24, no. 6: 820. https://doi.org/10.3390/e24060820

APA Style

Barra, F. (2022). Efficiency Fluctuations in a Quantum Battery Charged by a Repeated Interaction Process. Entropy, 24(6), 820. https://doi.org/10.3390/e24060820

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