| Satellite-based entanglement distribution over 1200 kilometers | |
| Yin, Juan1,2; Cao, Yuan1,2; Li, Yu-Huai1,2; Liao, Sheng-Kai1,2; Zhang, Liang2,3; Ren, Ji-Gang1,2; Cai, Wen-Qi1,2; Liu, Wei-Yue1,2; Li, Bo1,2; Dai, Hui1,2; Li, Guang-Bing1,2; Lu, Qi-Ming1,2; Gong, Yun-Hong1,2; Xu, Yu1,2; Li, Shuang-Lin1,2; Li, Feng-Zhi1,2; Yin, Ya-Yun1,2; Jiang, Zi-Qing3; Li, Ming3; Jia, Jian-Jun3; Ren, Ge4; He, Dong4; Zhou, Yi-Lin5; Zhang, Xiao-Xiang6; Wang, Na7; Chang, Xiang8; Zhu, Zhen-Cai5; 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 | |
| Source Publication | Science
 |
| Volume | 356Issue:6343Pages:1140-1144 |
| 2017 | |
| Language | 英语 |
| ISSN | 0036-8075 |
| Indexed By | SCI ; Ei |
| Abstract | 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 ∼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. |
| Keyword | efficiency measurement - network analysis - physics - quantum mechanics - satellite imagery - spatial distribution - telecommunication |
| Document Type | 期刊论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/8887 |
| Collection | 光电工程总体研究室（一室） |
| Affiliation | 1.Department of Modern Physics, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at Microscale, Hefei; 230026, China; 2.Chinese Academy of Sciences (CAS), Center for Excellence and 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.Key Laboratory of Optical Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 5.Shanghai Engineering Center for Microsatellites, Shanghai; 201203, China; 6.Key Laboratory of Space Object and Debris Observation, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing; 210008, China; 7.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi; 830011, China; 8.Yunnan Observatories, Chinese Academy of Sciences, Kunming; 650011, 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2017-2127.pdf（2007KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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