论文标题
量子信息在无序的量子步行中传播
Quantum information spreading in a disordered quantum walk
论文作者
论文摘要
我们使用量子步道设计量子探测协议，以研究量子信息传播模式。我们采用量子Fisher信息作为功绩的数字来量化有关量子步行演化中编码的未知参数的可提取信息。尽管该方法是普遍的，但我们专注于一致的静态和动态障碍，以研究异常和古典运输以及安德森本地化。我们的结果表明，量子步行可以被视为在经典和量子中发生的复杂网络中发生的缺陷和扰动的信息的读数设备。
We design a quantum probing protocol using Quantum Walks to investigate the Quantum Information spreading pattern. We employ Quantum Fisher Information, as a figure of merit, to quantify extractable information about an unknown parameter encoded within the Quantum Walk evolution. Although the approach is universal, we focus on the coherent static and dynamic disorder to investigate anomalous and classical transport as well as Anderson localization. Our results show that a Quantum Walk can be considered as a readout device of information about defects and perturbations occurring in complex networks, both classical and quantum.
