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Satellite-to-Ground Entanglement-Based Quantum Key Distribution
Yin, Juan1,2; Cao, Yuan1,2; Li, Yu-Huai1,2; Ren, Ji-Gang1,2; Liao, Sheng-Kai1,2; Zhang, Liang2,3; Cai, Wen-Qi1,2; Liu, Wei-Yue1,2; Li, Bo1,2; Dai, Hui1,2; Li, Ming3; Huang, Yong-Mei4; Deng, Lei5; Li, Li1,2; Zhang, Qiang1,2; Liu, Nai-Le1,2; Chen, Yu-Ao1,2; Lu, Chao-Yang1,2; Shu, Rong2,3; Peng, Cheng-Zhi1,2; Wang, Jian-Yu2,3; Pan, Jian-Wei1,2
2017
发表期刊Physical Review Letters
ISSN0031-9007
卷号119期号:20页码:200501
摘要We report on entanglement-based quantum key distribution between a low-Earth-orbit satellite equipped with a space borne entangled-photon source and a ground observatory. One of the entangled photons is measured locally at the satellite, and the other one is sent via a down link to the receiver in the Delingha ground station. The link attenuation is measured to vary from 29 dB at 530 km to 36 dB at 1000 km. We observe that the two-photon entanglement survives after being distributed between the satellite and the ground, with a measured state fidelity of ≥0.86. We then perform the entanglement-based quantum key distribution protocol and obtain an average final key rate of 3.5 bits/s at the distance range of 530-1000 km. © 2017 American Physical Society.
关键词Earth (planet) - Orbits - Photons - Quantum entanglement - Satellites
收录类别SCI ; Ei
语种英语
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8880
专题光电工程总体研究室(一室)
作者单位1.National Laboratory for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei; 230026, China;
2.CAS Center for Excellence, Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai; 201315, China;
3.Key Laboratory of Space Active Opto-Electronic Technology, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai; 200083, China;
4.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
5.Shanghai Engineering Center for Microsatellites, Shanghai; 201203, China
推荐引用方式
GB/T 7714
Yin, Juan,Cao, Yuan,Li, Yu-Huai,et al. Satellite-to-Ground Entanglement-Based Quantum Key Distribution[J]. Physical Review Letters,2017,119(20):200501.
APA Yin, Juan.,Cao, Yuan.,Li, Yu-Huai.,Ren, Ji-Gang.,Liao, Sheng-Kai.,...&Pan, Jian-Wei.(2017).Satellite-to-Ground Entanglement-Based Quantum Key Distribution.Physical Review Letters,119(20),200501.
MLA Yin, Juan,et al."Satellite-to-Ground Entanglement-Based Quantum Key Distribution".Physical Review Letters 119.20(2017):200501.
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