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arXiv · 1309.3088

Spacetime effects on satellite-based quantum communications

David Edward Bruschi·Tim Ralph·Ivette Fuentes·Thomas Jennewein·Mohsen Razavi
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Abstract

We investigate the consequences of space-time being curved on space-based quantum communication protocols. We analyze tasks that require either the exchange of single photons in a certain entanglement distribution protocol or beams of light in a continuous-variable quantum key distribution scheme. We find that gravity affects the propagation of photons, therefore adding additional noise to the channel for the transmission of information. The effects could be measured with current technology.

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David Edward Bruschi, Tim Ralph, Ivette Fuentes, Thomas Jennewein, Mohsen Razavi. 2014-04-26. Spacetime effects on satellite-based quantum communications. https://doi.org/10.1103/physrevd.90.045041

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