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Satellite-based entanglement distribution over 1200 kilometers

Yin, Juan ; Cao, Yuan ; Li, Yu-Huai ; Liao, Sheng-Kai ; Zhang, Liang ; Ren, Ji-Gang ; Cai, Wen-Qi ; Liu, Wei-Yue ; Li, Bo ; Dai, Hui ; Li, Guang-Bing ; Lu, Qi-Ming ; Gong, Yun-Hong ; Xu, Yu ; Li, Shuang-Lin ; Li, Feng-Zhi ; Yin, Ya-Yun ; Jiang, Zi-Qing ; Li, Ming ; Jia, Jian-Jun ; Ren, Ge ; He, Dong ; Zhou, Yi-Lin ; Zhang, Xiao-Xiang ; Wang, Na ; Chang, Xiang ; Zhu, Zhen-Cai ; Liu, Nai-Le ; Chen, Yu-Ao ; Lu, Chao-Yang ; Shu, Rong ; Peng, Cheng-Zhi ; Wang, Jian-Yu ; Pan, Jian-Wei

Science (American Association for the Advancement of Science), 2017-06, Vol.356 (6343), p.1140-1144 [Periódico revisado por pares]

United States: American Association for the Advancement of Science

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Título:
Satellite-based entanglement distribution over 1200 kilometers
Autor: Yin, Juan ; Cao, Yuan ; Li, Yu-Huai ; Liao, Sheng-Kai ; Zhang, Liang ; Ren, Ji-Gang ; Cai, Wen-Qi ; Liu, Wei-Yue ; Li, Bo ; Dai, Hui ; Li, Guang-Bing ; Lu, Qi-Ming ; Gong, Yun-Hong ; Xu, Yu ; Li, Shuang-Lin ; Li, Feng-Zhi ; Yin, Ya-Yun ; Jiang, Zi-Qing ; Li, Ming ; Jia, Jian-Jun ; Ren, Ge ; He, Dong ; Zhou, Yi-Lin ; Zhang, Xiao-Xiang ; Wang, Na ; Chang, Xiang ; Zhu, Zhen-Cai ; Liu, Nai-Le ; Chen, Yu-Ao ; Lu, Chao-Yang ; Shu, Rong ; Peng, Cheng-Zhi ; Wang, Jian-Yu ; Pan, Jian-Wei
É parte de: Science (American Association for the Advancement of Science), 2017-06, Vol.356 (6343), p.1140-1144
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SourceType-Scholarly Journals-1
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Descrição: 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.
Editor: United States: American Association for the Advancement of Science
Idioma: Inglês

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Satellite-based entanglement distribution over 1200 kilometers

United States: American Association for the Advancement of Science

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