Quantum Communications

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Quantum Communications

Postby BadgerJelly on July 15th, 2018, 9:44 pm 

Designer diamonds could one day help build a quantum internet

A new kind of artificial diamond is a cut above the rest for quantum memory.

Unlike other synthetic diamonds, which could either store quantum information for a long time or transmit it clearly, the new diamond can do both. This designer crystal, described in the July 6 Science, could be a key building block in a quantum internet. Such a futuristic communications network would allow people to send supersecure messages and connect quantum computers around the world (SN: 10/15/16, p. 13).

Defects made with silicon atoms emit light more precisely, but until now haven’t been able to store qubits for longer than several nanoseconds due to their electrical interactions with nearby particles, explains Nathalie de Leon, an electrical engineer at Princeton University.

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