This paper proposes a global-scale quantum internet using a constellation of orbiting satellites for continuous, on-demand entanglement distribution to ground stations. The authors develop a technique to determine optimal satellite configurations balancing the number of satellites and entanglement-distribution rates. They analyze satellite-to-ground loss and achievable rates for various configurations, comparing them to ground-based quantum repeater schemes. The study provides theoretical tools and experimental guidance for realizing a satellite-based global quantum internet.
Publisher
npj Quantum Information
Published On
Jan 04, 2021
Authors
Sumeet Khatri, Anthony J. Brady, Renée A. Desporte, Manon P. Bart, Jonathan P. Dowling
Tags
quantum internet
satellites
entanglement distribution
ground stations
quantum repeater
global communication
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