标题： 量子光的傅里叶处理 显示英文标题

标题： Fourier processing of quantum light

摘要： 研究表明，经典光学傅里叶处理器可用于塑造两个或多个光子之间的量子关联，并确定了适用于多光子傅里叶空间的傅里叶掩模类别。这一概念通过使用两种类型的周期相位掩模进行了实验演示，这些掩模被路径纠缠光子对所照射，这是一种高度非经典的光状态。首先应用了正弦相位掩模，模拟了周期晶格上的两粒子量子行走，根据初始状态产生了复杂的关联模式，表现出各种空间聚集和反聚集效应。然后，在正弦相位掩模之上应用了一个周期性的泽尼克类似滤波器。利用这个滤波器，恢复了原始关联测量中丢失的相位信息。 显示英文摘要

摘要： It is shown that a classical optical Fourier processor can be used for the shaping of quantum correlations between two or more photons, and the class of Fourier masks applicable in the multiphoton Fourier space is identified. This concept is experimentally demonstrated using two types of periodic phase masks illuminated with path-entangled photon pairs, a highly non-classical state of light. Applied first were sinusoidal phase masks, emulating two-particle quantum walk on a periodic lattice, yielding intricate correlation patterns with various spatial bunching and anti-bunching effects depending on the initial state. Then, a periodic Zernike-like filter was applied on top of the sinusoidal phase masks. Using this filter, phase information lost in the original correlation measurements was retrieved.