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arXiv · 2311.17219

Charge transport battery with quantum feedback

Oscar Bohorquez
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Abstract

A battery is a work storage device, i.e. a device that stores energy in the form of work for later use by other devices. In this work, we study the realization of a quantum battery in a double quantum dot in series, charged by two electrodes at different chemical potentials and optimized by a Markovian quantum feedback protocol. Using the concept of ergotropy as a figure of merit, we first establish a simple expression for the maximum ergotropy in a two-level system, and then find the parameters under which a Markovian feedback can achieve this optimal ergotropy. We also study the influence of interaction with a phonon environment on the charging and discharging process of the battery.

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Oscar Bohorquez. 2023-11-28. Charge transport battery with quantum feedback. https://arxiv.org/abs/2311.17219

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