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Quantum keys dial up tamper-proof conference calls

A new experiment efficiently distributes the highly secure keys to four parties instead of the typical two.
Conceptual artwork of a pair of entangled quantum particles.

An artist’s impression of ‘entangled’ particles, which share properties even at a distance. Entangled photons can be used to help secure a multi-party video meeting. Credit: Mark Garlick/Science Photo Library

The ultra-secure ‘quantum internet’ hasn’t arrived yet, but when it does, it looks like we’ll have quantum video conferences.

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Nature 594, 305 (2021)

doi: https://doi.org/10.1038/d41586-021-01534-6

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