Satellite-based entanglement distribution over 1200 kilometers
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | Science
 |
| 出版日期 | 2017 |
| 卷号 | 356期号:6343页码:1140-1144 |
| 关键词 | efficiency measurement - network analysis - physics - quantum mechanics - satellite imagery - spatial distribution - telecommunication |
| ISSN号 | 0036-8075 |
| 英文摘要 | 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. |
| 语种 | 英语 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/8887]  |
| 专题 | 光电技术研究所_光电工程总体研究室（一室） |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：光电技术研究所
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