标题： 多体局域化量子电池 显示英文标题

标题： Many-body localized quantum batteries

摘要： 多体系统的集体和量子行为可能被利用来实现能量存储设备的快速充电，这些设备最近被称为量子电池。 在本文中，我们对由无序量子伊辛链哈密顿量描述的量子电池中的能量流动进行了广泛的数值分析，其平衡相图呈现出多体局域化（MBL）、安德森局域化（AL）和遍历相。 我们证明了i）MBL相的少量纠缠保证了比遍历相更好的功提取能力，ii）相互作用抑制了时间上的能量波动，相比非相互作用的AL相而言。 最后，我们表明最优充电时间值的统计分布是MBL相的明确诊断工具。 显示英文摘要

摘要： The collective and quantum behavior of many-body systems may be harnessed to achieve fast charging of energy storage devices, which have been recently dubbed quantum batteries. In this paper, we present an extensive numerical analysis of energy flow in a quantum battery described by a disordered quantum Ising chain Hamiltonian, whose equilibrium phase diagram presents many-body localized (MBL), Anderson localized (AL), and ergodic phases. We demonstrate that i) the low amount of entanglement of the MBL phase guarantees much better work extraction capabilities than the ergodic phase and ii) interactions suppress temporal energy fluctuations in comparison with those of the non-interacting AL phase. Finally, we show that the statistical distribution of values of the optimal charging time is a clear-cut diagnostic tool of the MBL phase.