论文标题
基于量子动力学的定位检测
Localization detection based on quantum dynamics
论文作者
论文摘要
检测多体定位（MBL）通常需要使用数值方法来计算高能量本质。这项研究研究了假定使用量子装置来检测障碍诱导的定位的方法。小型系统的数值模拟证明了磁化和扭曲重叠是如何从量子设备中的量子位测量中轻松获得的，从热相变为局部相。在时间演化结束时使用波函数评估的扭曲重叠与在特定条件下能量谱中用本征态评估的扭曲函数相似。随着时间的演变，用于许多疾病实现后使用波函数评估的扭曲重叠是一种有希望的探针，用于检测量子计算方法中的MBL。
Detecting many-body localization (MBL) typically requires the calculation of high-energy eigenstates using numerical approaches. This study investigates methods that assume the use of a quantum device to detect disorder-induced localization. Numerical simulations for small systems demonstrate how the magnetization and twist overlap, which can be easily obtained from the measurement of qubits in a quantum device, change from the thermal phase to the localized phase. The twist overlap evaluated using the wave function at the end of the time evolution behaves similarly to the one evaluated with eigenstates in the middle of the energy spectrum under a specific condition. The twist overlap evaluated using the wave function after time evolution for many disorder realizations is a promising probe for detecting MBL in quantum computing approaches.
