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Free-space communications

Quantum space race heats up

The realization of satellite-to-ground quantum cryptography would make quantum-secured communications possible on a global scale. Four recent breakthroughs suggest that this compelling capability could be achieved by the end of this decade.

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Figure 1: Satellite-to-ground quantum communications are opening the door to new secure communications techniques.


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Correspondence to Richard J. Hughes or Jane E. Nordholt.

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Hughes, R., Nordholt, J. Quantum space race heats up. Nature Photon 11, 456–458 (2017).

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