论文标题
量子网络中的本地与全局两光子干扰
Local versus Global Two-Photon Interference in Quantum Networks
论文作者
论文摘要
我们设计一种方法来表征网络中两光子状态的经典干扰之间的复杂相互作用，该态包括多个时键模式。通过控制离域单光子的阶段，我们操纵了全局模式结构，从而导致分离的两光子干扰现象解决了时间键（局部）和时间桶（全球）（全局）重合检测。对光子模式结构的这种连贯的控制允许综合两光子干扰模式，其中局部测量会产生标准的hong-ou-mandel倾角，而全局的两光子可见性则由Delocalized单光子状态的重叠控制。因此，我们的实验引入了一种工程网络中分布式量子干扰的方法。
We devise an approach to characterizing the intricate interplay between classical and quantum interference of two-photon states in a network, which comprises multiple time-bin modes. By controlling the phases of delocalized single photons, we manipulate the global mode structure, resulting in distinct two-photon interference phenomena for time-bin resolved (local) and time-bucket (global) coincidence detection. This coherent control over the photons' mode structure allows for synthesizing two-photon interference patterns, where local measurements yield standard Hong-Ou-Mandel dips while the global two-photon visibility is governed by the overlap of the delocalized single-photon states. Thus, our experiment introduces a method for engineering distributed quantum interferences in networks.
