Entanglement demonstration on board a nano-satellite
Aitor Villar, Alexander Lohrmann, Xueliang Bai, Tom Vergoossen, Robert, Bedington, Chithrabhanu Perumangatt, Huai Ying Lim, Tanvirul Islam, Ayesha, Reezwana, Zhongkan Tang, Rakhitha Chandrasekara, Subash Sachidananda, Kadir, Durak, Christoph F. Wildfeuer, Douglas Griffin
TL;DR
This paper demonstrates a miniaturized polarization entangled photon-pair source on a nano-satellite, achieving Bell inequality violation, paving the way for cost-effective quantum communication satellite networks.
Contribution
It introduces a compact, onboard entangled photon source for nano-satellites, enabling future quantum communication missions with reduced satellite size and cost.
Findings
Violates Bell's inequality with CHSH=2.6 ± 0.06
Operates successfully on a nano-satellite platform
Provides a foundation for quantum communication in small satellites
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 0.06. This source can be combined with optical link technologies to enable future quantum communication nano-satellite missions.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Mechanics and Applications · Molecular Communication and Nanonetworks