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, and, Jian-Wei Pan
TL;DR
This paper presents a polarization maintenance system for ground-to-satellite quantum communication, achieving high fidelity and successfully distributing entanglement with Bell inequality violation.
Contribution
It introduces a novel polarization compensation scheme for satellite motion and demonstrates the first ground-to-satellite entanglement distribution with Bell violation.
Findings
Polarization extinction ratio of 887:1 achieved
Polarization fidelity over 0.995 maintained
Successful distribution of entanglement with Bell violation of 2.312+-0.096
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.