Charging Quantum Batteries with a General Harmonic Driving Field

被引：27
作者：
Chen, Jie [1 ]
Zhan, Liyao [1 ]
Shao, Lei [1 ]
Zhang, Xingyu [1 ]
Zhang, Yuyu [2 ]
Wang, Xiaoguang [1 ]
机构：
[1] Zhejiang Univ, Zhejiang Inst Modern Phys, Dept Phys, Hangzhou 310027, Peoples R China
[2] Chongqing Univ, Dept Phys, Chongqing 401330, Peoples R China
来源：
ANNALEN DER PHYSIK | 2020年 / 532卷 / 04期
基金：
中国国家自然科学基金;
关键词：
charge saturation; driven systems; Floquet theorem; harmonic driving; quantum batteries; su(2); unsaturated charging mode;
D O I：
10.1002/andp.201900487
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A general harmonic driving field was considered for improving the charging efficiency of the quantum battery system. Charge saturation was used to describe the charging efficiency, where the charging mode is divided into saturated and unsaturated. The relationships between the time-dependent charge saturation and parameters of the general driving field were evaluated both analytically and numerically. The Floquet theorem was used to express time-dependent charge saturation with the quasienergy and Floquet states of the system. The analytical and numerical results were used to identify the best parameter values for optimizing the charging efficiency.
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页数：8
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