论文标题
量子电池的工作波动和纠缠
Work fluctuations and entanglement in quantum batteries
论文作者
论文摘要
我们考虑由复合相互作用量子系统给出的量子电池，从局部随机统一过程的热力学工作成本方面。我们通过监测高维双分解系统中的平均能量变化及其波动来表征量子相关性。我们从工作波动中得出了高维纠缠（所谓的施密特号）的界限层次结构，从而表明较大的工作波动可以验证系统中更强大的纠缠。最后，我们开发了两点测量方案，该方案具有嘈杂的探测器，可以估计工作波动，表明可以以这种方式探测纠缠的维度。
We consider quantum batteries given by composite interacting quantum systems in terms of the thermodynamic work cost of local random unitary processes. We characterize quantum correlations by monitoring the average energy change and its fluctuations in the high-dimensional bipartite systems. We derive a hierarchy of bounds on high-dimensional entanglement (the so-called Schmidt number) from the work fluctuations and thereby show that larger work fluctuations can verify the presence of stronger entanglement in the system. Finally, we develop two-point measurement protocols with noisy detectors that can estimate work fluctuations, showing that the dimensionality of entanglement can be probed in this manner.
