Charge transport battery with quantum feedback

• URL: http://arxiv.org/abs/2311.17219v2
• Date: Mon, 8 Jan 2024 02:59:24 GMT
• Title: Charge transport battery with quantum feedback
• Authors: Oscar Bohorquez
• Abstract summary: 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. We also study the influence of interaction with a phonon environment on the charging and discharging process of the battery.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• 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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