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Space-to-Ground Quantum Key Distribution Using a Small-Sized Payload on Tiangong-2 Space Lab
Liao, Sheng-Kai1,2,3,4; Lin, Jin1,2,3,4; Ren, Ji-Gang1,2,3,4; Liu, Wei-Yue1,2,3,4; Qiang, Jia5; Yin, Juan1,2,3,4; Li, Yang1,2,3,4; Shen, Qi1,2,3,4; Zhang, Liang3,4,5; Liang, Xue-Feng6; Yong, Hai-Lin1,2,3,4; Li, Feng-Zhi1,2,3,4; Yin, Ya-Yun1,2,3,4; Cao, Yuan1,2,3,4; Cai, Wen-Qi1,2,3,4; Zhang, Wen-Zhuo1,2,3,4; Jia, Jian-Jun5; Wu, Jin-Cai5; Chen, Xiao-Wen5; Zhang, Shan-Cong6; Jiang, Xiao-Jun7; Wang, Jian-Feng7; Huang, Yong-Mei8; Wang, Qiang8; Ma, Lu9; Li, Li1,2,3,4; Pan, Ge-Sheng1,2,3,4; Zhang, Qiang1,2,3,4; Chen, Yu-Ao1,2,3,4; Lu, Chao-Yang1,2,3,4; Liu, Nai-Le1,2,3,4; Ma, Xiongfeng3,4; Shu, Rong3,4,5; Peng, Cheng-Zhi1,2,3,4; Wang, Jian-Yu3,4,5; Pan, Jian-Wei1,2,3,4
2017-08-01
发表期刊CHINESE PHYSICS LETTERS
卷号34期号:9
摘要Quantum technology establishes a foundation for secure communication via quantum key distribution (QKD). In the last two decades, the rapid development of QKD makes a global quantum communication network feasible. In order to construct this network, it is economical to consider small-sized and low-cost QKD payloads, which can be assembled on satellites with different sizes, such as space stations. Here we report an experimental demonstration of space-to-ground QKD using a small-sized payload, from Tiangong-2 space lab to Nanshan ground station. The 57.9-kg payload integrates a tracking system, a QKD transmitter along with modules for synchronization, and a laser communication transmitter. In the space lab, a 50 MHz vacuum + weak decoy-state optical source is sent through a reflective telescope with an aperture of 200 mm. On the ground station, a telescope with an aperture of 1200 mm collects the signal photons. A stable and high-transmittance communication channel is set up with a high-precision bidirectional tracking system, a polarization compensation module, and a synchronization system. When the quantum link is successfully established, we obtain a key rate over 100 bps with a communication distance up to 719 km. Together with our recent development of QKD in daylight, the present demonstration paves the way towards a practical satellite-constellation-based global quantum secure network with small-sized QKD payloads.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
资助者Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1088/0256-307X/34/9/090302
关键词[WOS]COMMUNICATION ; DAYLIGHT ; SYSTEMS ; SECURE
收录类别SCI
语种英语
资助者Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; Technology and Engineering Center for Space Utilization Chinese Academy of Sciences, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000412913300005
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/20109
专题光学天文研究部
作者单位1.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
3.CAS Ctr Excellence, Shanghai Branch, Shanghai 201315, Peoples R China
4.Synerget Innovat Ctr Quantum Informat & Quantum P, Shanghai 201315, Peoples R China
5.Chinese Acad Sci, Key Lab Space Act Optoelect Technol, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R China
6.Beijing UCAS Space Technol Co Ltd, Beijing 100190, Peoples R China
7.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
8.Chinese Acad Sci, Inst Opt & Elect, Key Lab Opt Engn, Chengdu 610209, Peoples R China
9.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
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GB/T 7714
Liao, Sheng-Kai,Lin, Jin,Ren, Ji-Gang,et al. Space-to-Ground Quantum Key Distribution Using a Small-Sized Payload on Tiangong-2 Space Lab[J]. CHINESE PHYSICS LETTERS,2017,34(9).
APA Liao, Sheng-Kai.,Lin, Jin.,Ren, Ji-Gang.,Liu, Wei-Yue.,Qiang, Jia.,...&Pan, Jian-Wei.(2017).Space-to-Ground Quantum Key Distribution Using a Small-Sized Payload on Tiangong-2 Space Lab.CHINESE PHYSICS LETTERS,34(9).
MLA Liao, Sheng-Kai,et al."Space-to-Ground Quantum Key Distribution Using a Small-Sized Payload on Tiangong-2 Space Lab".CHINESE PHYSICS LETTERS 34.9(2017).
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