Weston Morgan M, Chrzanowski Helen M, Wollmann Sabine, Boston Allen, Ho Joseph, Shalm Lynden K, Verma Varun B, Allman Michael S, Nam Sae Woo, Patel Raj B, Slussarenko Sergei, Pryde Geoff J
Opt Express. 2016 May 16;24(10):10869-79. doi: 10.1364/OE.24.010869.
We present a source of polarization entangled photon pairs based on spontaneous parametric downconversion engineered for frequency uncorrelated telecom photon generation. Our source provides photon pairs that display, simultaneously, the key properties for high-performance quantum information and fundamental quantum science tasks. Specifically, the source provides for high heralding efficiency, high quantum state purity and high entangled state fidelity at the same time. Among different tests we apply to our source we observe almost perfect non-classical interference between photons from independent sources with a visibility of (100 ± 5)%.
我们展示了一种基于自发参量下转换的偏振纠缠光子对源，该源经过设计可用于产生频率不相关的电信光子。我们的源提供的光子对同时展现出适用于高性能量子信息和基础量子科学任务的关键特性。具体而言，该源同时具备高预示效率、高量子态纯度和高纠缠态保真度。在对我们的源进行的不同测试中，我们观察到来自独立源的光子之间几乎完美的非经典干涉，其可见度为(100 ± 5)%。
