Author(s): Yan-Lin Tang, Hua-Lei Yin, Si-Jing Chen, Yang Liu, Wei-Jun Zhang, Xiao Jiang, Lu Zhang, Jian Wang, Li-Xing You, Jian-Yu Guan, Dong-Xu Yang, Zhen Wang, Hao Liang, Zhen Zhang, Nan Zhou, Xiongfeng Ma, Teng-Yun Chen, Qiang Zhang, and Jian-Wei Pan
Using stable, high-efficiency single photon detectors, a quantum key distribution protocol is demonstrated and shown to be secure over a distance of 200 km.
[Phys. Rev. Lett. 113, 190501] Published Thu Nov 06, 2014