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19 April 2024

» arxiv » 1912.6318

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Polarization design for ground-to-satellite quantum entanglement distribution
Xuan Han ; Hai-Lin Yong ; Ping Xu ; Kui-Xing Yang ; Shuang-Lin Li ; Wei-Yang Wang ; Hua-Jian Xue ; Feng-Zhi Li ; Ji-Gang Ren ; Cheng-Zhi Peng ; Jian-Wei Pan ;
Date:	13 Dec 2019
Abstract:	Polarization maintenance is a key technology for free-space quantum communication. In this paper, we describe a polarization maintenance design of a transmitting antenna with an average polarization extinction ratio of 887 : 1 by a local test. We implemented a feasible polarization-compensation scheme for satellite motions that has a polarization fidelity more than 0.995. Finally, we distribute entanglement to a satellite from ground for the first time with a violation of Bell inequality by 2.312+-0.096.
Source:	arXiv, 1912.6318
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