论文标题
弗朗森型实验中相关条纹的起源
The origin of correlation fringe in Franson-type experiments
论文作者
论文摘要
非局部相关性是量子信息处理中的关键概念,其中量子纠缠提供了这种非经典属性。自从Franson的第一个基于非干涉仪的两光强度相关性的提案(物理学修订版62,2205(1989))以来,已经对光子的粒子性质进行了深入研究,以使用Mach-zehnder Interptromementer(MZIS)进行非局部相关性。在这里,在弗兰森型实验中,研究了MZI的作用,在弗朗森型实验中,光子的波性质起着关键作用。在独立MZIS之间的巧合提供的量子叠加下,我们证明可以通过MZIS从非输入的光子创建非局部相关性。
Nonlocal correlation is the key concept in quantum information processing, where quantum entanglement provides such a nonclassical property. Since the first proposal of noninterfering interferometer-based two-photon intensity correlation by Franson (Phys. Rev. Lett. 62, 2205 (1989)), the particle nature of photons has been intensively studied for nonlocal correlation using Mach-Zehnder interferometers (MZIs). Here, the role of MZIs is investigated with respect to the origin of nonlocal correlation in Franson-type experiments, where the wave nature of photons plays a critical role. Under the coincidence-provided quantum superposition between independent MZIs, we prove that nonlocal correlation can be created from non-entangled photons through the MZIs.