论文标题
开放量子电池充电功率的界限
Bounds on charging power of open quantum batteries
论文作者
论文摘要
通常，量子系统由于其较小和敏感性而最有可能进行开放系统动力学。储能设备，即所谓的量子电池，并未排除在此现象之外。在这里，我们从几何学的角度研究了关于开放量子电池的力量的基本界限。通过定义\ emph {活动操作员}，根据活动操作员的波动和量子渔民信息，开放量子电池的充电能力上的紧密上限是为开放量子电池得出的。活动操作员的方差可以解释为通用热力学力，而量子渔民信息描述了电池状态空间中的进化速度。详细讨论了上限的热力学解释。例如，提出了一个电池的模型，并提出了环境效应，并研究了充电过程中耗散和脱谐作用对存储工作和充电能力的影响。我们的结果表明，上限在某些时间间隔中饱和。同样，在非马科维亚失败不足的制度中，存储的工作和相应功率的最大值都是实现的。
In general, quantum systems most likely undergo open system dynamics due to their smallness and sensitivity. Energy storage devices, so-called quantum batteries, are not excluded from this phenomenon. Here, we study fundamental bounds on the power of open quantum batteries from the geometric point of view. By defining an \emph{activity operator}, a tight upper bound on the charging power is derived for the open quantum batteries in terms of the fluctuations of the activity operator and the quantum Fisher information. The variance of the activity operator may be interpreted as a generalized thermodynamic force, while the quantum Fisher information describes the speed of evolution in the state space of the battery. The thermodynamic interpretation of the upper bound is discussed in detail. As an example, a model for the battery, taking into account the environmental effects, is proposed, and the effect of dissipation and decoherence during the charging process on both the stored work and the charging power is investigated. Our results show that the upper bound is saturated in some time intervals. Also, the maximum value of both the stored work and the corresponding power is achieved in the non-Markovian underdamped regime.
