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Entanglement demonstration on board a nano-satellite

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arxiv 2006.14430 v1 pith:JTGXMCSC submitted 2020-06-25 quant-ph

Entanglement demonstration on board a nano-satellite

Aitor Villar , Alexander Lohrmann , Xueliang Bai , Tom Vergoossen , Robert Bedington , Chithrabhanu Perumangatt , Huai Ying Lim , Tanvirul Islam
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Ayesha Reezwana Zhongkan Tang Rakhitha Chandrasekara Subash Sachidananda Kadir Durak Christoph F. Wildfeuer Douglas Griffin Daniel K. L. Oi Alexander Ling
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keywords nano-satellitesourceboardcommunicationentangledquantumsatellitesbecause
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abstract

Global quantum networks for secure communication can be realised using large fleets of satellites distributing entangled photon-pairs between ground-based nodes. Because the cost of a satellite depends on its size, the smallest satellites will be most cost-effective. This paper describes a miniaturised, polarization entangled, photon-pair source operating on board a nano-satellite. The source violates Bell's inequality with a CHSH parameter of 2.6 $\pm$ 0.06. This source can be combined with optical link technologies to enable future quantum communication nano-satellite missions.

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