Yuan Zhen-Sheng, Chen Yu-Ao, Chen Shuai, Zhao Bo, Koch Markus, Strassel Thorsten, Zhao Yong, Zhu Gan-Jun, Schmiedmayer Jörg, Pan Jian-Wei
Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany.
Phys Rev Lett. 2007 May 4;98(18):180503. doi: 10.1103/PhysRevLett.98.180503.
We create independent, synchronized single-photon sources with built-in quantum memory based on two remote cold atomic ensembles. The synchronized single photons are used to demonstrate efficient generation of entanglement. The resulting entangled photon pairs violate a Bell's inequality by 5 standard deviations. Our synchronized single photons with their long coherence time of 25 ns and the efficient creation of entanglement serve as an ideal building block for scalable linear optical quantum information processing.
我们基于两个远程冷原子系综创建了具有内置量子存储器的独立、同步单光子源。同步单光子用于演示纠缠的高效生成。所产生的纠缠光子对违反贝尔不等式达5个标准差。我们的同步单光子具有25纳秒的长相干时间以及纠缠的高效生成，是可扩展线性光学量子信息处理的理想构建模块。
