论文标题
被动状态的结构及其在充电量子电池中的影响
Structure of passive states and its implication in charging quantum batteries
论文作者
论文摘要
在本文中，除了对被动状态的几何状态空间的表征外，还引入了一种操作方法，以在量子电池的充电能力上区分它们。与热状态不同，被动状态的结构不稳定确保存在自然数量$ n $，$ n+1 $ $ opies的国家可以为量子电池充电，而$ n $ copies则不能为此充电。这种现象可以以$ n $ - 复制资源理论方法的形式呈现，为此，自由状态无法以$ n $ copies为电池充电。在这里，我们已经明确展示了单个复制方案。我们还表明，不可能根据被动状态的一般订购，即使是不可能的，即使是宏观实体（即能量和熵）也无法精确订购它们。有趣的是，对于某些被动国家，主要化标准为充电和排放能力提供了足够的命令。但是，一组热状态的充电能力（可能为此充电）与温度成正比。
In this article, in addition to the characterization of geometrical state spaces for the passive states, an operational approach has been introduced to distinguish them on their charging capabilities of a quantum battery. Unlike the thermal states, the structural instability of passive states assures the existence of a natural number $n$, for which $n+1$-copies of the state can charge a quantum battery while $n$-copies cannot. This phenomenon can be presented in a $n$-copy resource-theoretic approach, for which the free states are unable to charge the battery in $n$-copies. Here we have exhibited the single copy scenario explicitly. We also show that general ordering of the passive states on the basis of their charging capabilities is not possible and even the macroscopic entities (viz. energy and entropy) are unable to order them precisely. Interestingly, for some of the passive states, the majorization criterion gives sufficient order to the charging and discharging capabilities. However, the charging capacity for the set of thermal states (for which charging is possible), is directly proportional to their temperature.
