Could we build a secure quantum internet with the cables we already use?
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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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