Entanglement demonstration on board a nano-satellite

Villar, Aitor and Lohrmann, Alexander and Bai, Xueliang and Vergoossen, Tom and Bedington, Robert and Perumangatt, Chithrabhanu and Lim, Huai Ying and Islam, Tanvirul and Reezwana, Ayesha and Tang, Zhongkan and Chandrasekara, Rakhitha and Sachidananda, Subash and Durak, Kadir and Wildfeuer, Christoph F. and Griffin, Douglas and Oi, Daniel K. L. and Ling, Alexander (2020) Entanglement demonstration on board a nano-satellite. Optica, 7 (7). pp. 734-737. ISSN 1899-7015 (https://doi.org/10.1364/OPTICA.387306)

[thumbnail of Villar-etal-Optica-2020-Entanglement-demonstration-on-board-a-nano]
Text. Filename: Villar_etal_Optica_2020_Entanglement_demonstration_on_board_a_nano.pdf
Final Published Version

Download (1MB)| Preview


Global quantum networks for secure communication can be realized 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 Letter describes a miniaturized, polarization entangled, photon-pair source operating on board a nano-satellite. The source violates Bell’s inequality with a Clauser–Horne–Shimony–Holt parameter of 2.60±0.06. This source can be combined with optical link technologies to enable future quantum communication nano-satellite missions.