Quantum teleportation can survive through busy internet cables

An experiment showing that quantum and classical communication can be carried out through the same fibre at the same time may open the door to building a quantum internet with existing infrastructure

Caught in a traffic jam with the internet, quantum teleportation persists. An experiment demonstrating that the two can share an optical fibre may point towards an easier way to build an unhackable quantum internet.

“For many years, I’ve had the thought of how can we share quantum information over the same fibres that carry classical communication signals?” says Prem Kumar at Northwestern University in Illinois. Now, he and…

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