Physics

Spooky action at a global distance: analysis of space-based entanglement distribution for the quantum internet

S. Khatri, A. J. Brady, et al.

Explore the cutting-edge advances in quantum communication with groundbreaking research by Sumeet Khatri, Anthony J. Brady, Renée A. Desporte, Manon P. Bart, and Jonathan P. Dowling. This study unveils a global quantum internet powered by satellites, ensuring continuous entanglement distribution to ground stations. Discover the balance between satellite numbers and entanglement rates and how this transforms the future of quantum technology.

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Index

Abstract

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

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