Observation of entanglement of a single photon with a trapped atom
Observation of entanglement of a single photon with a trapped atom
复制标题
DOI：
10.1103/physrevlett.96.030404
复制
发表时间：
2006-01-27
影响因子：
8.6
通讯作者：
Weinfurter, H
中科院分区：
文献类型：
--
作者：
Volz, J;Weber, M;Weinfurter, H
我们报告了在适合远距离低损耗通信的波长下观察到的单个被捕获原子和单个光子之间的纠缠，从而实现了向长距离量子网络迈出的关键一步。为了验证纠缠，我们引入了单原子态分析。该技术用于原子-光子量子位对的全态断层扫描。检测效率和纠缠保真度足够高，可以在下一步中产生远距离的纠缠原子，为最终的无漏洞贝尔实验做好准备。
We report the observation of entanglement between a single trapped atom and a single photon at a wavelength suitable for low-loss communication over large distances, thereby achieving a crucial step towards long range quantum networks. To verify the entanglement, we introduce a single atom state analysis. This technique is used for full state tomography of the atom-photon qubit pair. The detection efficiency and the entanglement fidelity are high enough to allow in a next step the generation of entangled atoms at large distances, ready for a final loophole-free Bell experiment.