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Environment-mediated charging process of quantum batteries
Physical Review A ( IF 2.9 ) Pub Date : 2020-11-25 , DOI: 10.1103/physreva.102.052223
F. T. Tabesh , F. H. Kamin , S. Salimi

We study the charging process of open quantum batteries mediated by a common dissipative environment in two different scenarios. In the first case, we consider a quantum charger-battery model in the presence of a non-Markovian environment, where the battery can be properly charged in a strong coupling regime, without any external power and any direct interaction with the charger, i.e., a wireless-like charging happens. The environment plays a major role in the charging of the battery, while this does not happen in a weak coupling regime. In the second scenario, we show the effect of individual and collective spontaneous emission rates on the charging process of quantum batteries by considering a two-qubit system in the presence of Markovian dynamics. Our results demonstrate that open batteries can be satisfactorily charged in Markovian dynamics by employing an underdamped regime and/or strong external fields. We also present a robust battery by taking into account subradiant states and an intermediate regime. Moreover, we propose an experimental setup to explore the ergotropy in the first scenario.

中文翻译:

环境介导的量子电池充电过程

我们研究了在两种不同情况下由普通耗散环境介导的开放量子电池的充电过程。在第一种情况下,我们考虑在非马尔可夫环境下存在的量子充电器-电池模型,在该模型中,可以在强耦合状态下对电池进行适当充电,而无需任何外部电源,也无需与充电器直接交互,即,像无线充电一样发生。环境在电池充电中起主要作用,而在弱耦合状态下不会发生这种情况。在第二种情况下,我们通过考虑在存在马尔可夫动力学的情况下的两个量子位系统,展示了个体和集体自发发射速率对量子电池充电过程的影响。我们的结果表明,通过采用欠阻尼机制和/或强外部场,可以在马尔可夫动力学中令人满意地对开式电池充电。我们还通过考虑亚辐射态和中间态来提出一种坚固的电池。此外,我们提出了一种实验装置来探索第一种情况下的人体工程学。
更新日期:2020-11-25
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