Juan Yin;Yuan Cao;Yu Huai Li;Sheng Kai Liao;Liang Zhang;Ji Gang Ren;Wen Qi Cai;Wei Yue Liu;Bo Li;Hui Dai;Guang Bing Li;Qi Ming Lu;Yun Hong Gong;Yu Xu;Shuang Lin Li;Feng Zhi Li;Ya Yun Yin;Zi Qing Jiang;Ming Li;Jian Jun Jia;戈 任;Dong He;Yi Lin Zhou;Xiao Xiang Zhang;娜 王;Xiang Chang;真才 朱;Nai Le Liu;宇翱 陈;Chao Yang Lu;嵘 舒;承志 彭;建宇 王;建伟 潘
University of Science and Technology of China;CAS - Shanghai Institute of Technical Physics;CAS - Institute of Optics and Electronics;Shanghai Engineering Center for Microsatellites;CAS - Purple Mountain Observatory;CAS - National Astronomical Observatories
发表时间:2017-6-16
期 刊:Science
语 言:English
U R L: http://www.scopus.com/inward/record.url?scp=85020921403&partnerID=8YFLogxK
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.
Scopus度量
年份 | CiteScore | SJR | SNIP |
---|---|---|---|
1996 | |||
1997 | |||
1998 | |||
1999 | 16.615 | 6.948 | |
2000 | 13.319 | 7.003 | |
2001 | 10.987 | 6.898 | |
2002 | 10.814 | 7.242 | |
2003 | 11.428 | 7.439 | |
2004 | 11.589 | 7.237 | |
2005 | 11.09 | 6.525 | |
2006 | 10.542 | 6.097 | |
2007 | 10.072 | 5.991 | |
2008 | 11.277 | 6.041 | |
2009 | 11.897 | 7.025 | |
2010 | 13.481 | 7.745 | |
2011 | 44.7 | 14.238 | 8.191 |
2012 | 46.3 | 13.318 | 7.992 |
2013 | 46.9 | 12.41 | 7.719 |
2014 | 46 | 12.052 | 8.045 |
2015 | 46.6 | 12.872 | 7.549 |
2016 | 49.5 | 13.745 | 7.652 |
2017 | 49.4 | 14.142 | 7.366 |
2018 | 47.1 | 13.251 | 7.529 |
2019 | 45.3 | 13.11 | 7.521 |
2020 | 46.2 | ||
2021 |
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