Optimal charging of a superconducting quantum battery
Abstract
Quantum batteries are miniature energy storage devices and play a very important role in quantum thermodynamics. In recent years, quantum batteries have been extensively studied, but limited in theoretical level. Here we report the experimental realization of a quantum battery based on superconducting qubits. Our model explores dark and bright states to achieve stable and powerful charging processes, respectively. Our scheme makes use of the quantum adiabatic brachistochrone, which allows us to speed up the {battery ergotropy injection. Due to the inherent interaction of the system with its surrounding, the battery exhibits a self-discharge, which is shown to be described by a supercapacitor-like self-discharging mechanism. Our results paves the way for proposals of new superconducting circuits able to store extractable work for further usage.
Keywords
Cite
@article{arxiv.2108.04298,
title = {Optimal charging of a superconducting quantum battery},
author = {Chang-Kang Hu and Jiawei Qiu and Paulo J. P. Souza and Jiahao Yuan and Yuxuan Zhou and Libo Zhang and Ji Chu and Xianchuang Pan and Ling Hu and Jian Li and Yuan Xu and Youpeng Zhong and Song Liu and Fei Yan and Dian Tan and R. Bachelard and C. J. Villas-Boas and Alan C. Santos and Dapeng Yu},
journal= {arXiv preprint arXiv:2108.04298},
year = {2022}
}
Comments
5 pages and 3 figures + Supplemental material