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Satellite-based entanglement distribution over 1200 kilometers
Yin, Juan1,2,3,4; Cao, Yuan1,2,3,4; Li, Yu-Huai1,2,3,4; Liao, Sheng-Kai1,2,3,4; Zhang, Liang3,4,5; Ren, Ji-Gang1,2,3,4; Cai, Wen-Qi1,2,3,4; Liu, Wei-Yue1,2,3,4; Li, Bo1,2,3,4; Dai, Hui1,2,3,4; Li, Guang-Bing1,2,3,4; Lu, Qi-Ming1,2,3,4; Gong, Yun-Hong1,2,3,4; Xu, Yu1,2,3,4; Li, Shuang-Lin1,2,3,4; Li, Feng-Zhi1,2,3,4; Yin, Ya-Yun1,2,3,4; Jiang, Zi-Qing5; Li, Ming5; Jia, Jian-Jun5; Ren, Ge6; He, Dong6; Zhou, Yi-Lin7; Zhang, Xiao-Xiang8; Wang, Na9; Chang, Xiang10; Zhu, Zhen-Cai7; Liu, Nai-Le1,2,3,4; Chen, Yu-Ao1,2,3,4; Lu, Chao-Yang1,2,3,4; Shu, Rong5; Peng, Cheng-Zhi1,2,3,4; Wang, Jian-Yu3,4,5; Pan, Jian-Wei1,2,3,4
Source PublicationSCIENCE
Contribution Rank9

Long-distance entanglement distribution is essential for both foundational tests of quantum physics and scalable quantum networks. Owing to channel loss, however, the previously achieved distance was limited to similar to 100 kilometers. Here we demonstrate satellite-based distribution of entangled photon pairs to two locations separated by 1203 kilometers on Earth, through two satellite-to-ground downlinks with a summed length varying from 1600 to 2400 kilometers. We observed a survival of two-photon entanglement and a violation of Bell inequality by 2.37 +/- 0.09 under strict Einstein locality conditions. The obtained effective link efficiency is orders of magnitude higher than that of the direct bidirectional transmission of the two photons through telecommunication fibers.

WOS HeadingsScience & Technology
Indexed BySCI
WOS KeywordHidden-variable Theories ; Podolsky-rosen Channels ; Quantum Communication ; Experimental Realization ; Purification ; Violation ; Photon ; States
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000403327400029
Funding OrganizationStrategic Priority Research Program on Space Science of the Chinese Academy of Sciences ; National Natural Science Foundation of China
Citation statistics
Cited Times:444[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorPeng, Cheng-Zhi
Affiliation1.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
3.Univ Sci & Technol China, CAS, Ctr Excellence, Shanghai 201315, Peoples R China
4.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Shanghai 201315, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Space Act Optoelect Technol, Shanghai 200083, Peoples R China
6.Chinese Acad Sci, Inst Opt & Elect, Key Lab Opt Engn, Chengdu 610209, Peoples R China
7.Shanghai Engn Ctr Microsatellites, Shanghai 201203, Peoples R China
8.Chinese Acad Sci, Key Lab Space Object & Debris Observat, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
9.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
10.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China
Recommended Citation
GB/T 7714
Yin, Juan,Cao, Yuan,Li, Yu-Huai,et al. Satellite-based entanglement distribution over 1200 kilometers[J]. SCIENCE,2017,356(6343):1140-1144.
APA Yin, Juan.,Cao, Yuan.,Li, Yu-Huai.,Liao, Sheng-Kai.,Zhang, Liang.,...&Pan, Jian-Wei.(2017).Satellite-based entanglement distribution over 1200 kilometers.SCIENCE,356(6343),1140-1144.
MLA Yin, Juan,et al."Satellite-based entanglement distribution over 1200 kilometers".SCIENCE 356.6343(2017):1140-1144.
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