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Communications of the ACM


Secure Quantum Communications

Secure Quantum Communications, illustration

Credit: Qi Labs

Two independent experiments published on the same day last August (August 12, 2016) have demonstrated the potential for quantum mechanics to improve the efficiency of secure data communications.

The experiments mark a departure from the current mainstream proposal for quantum communications: quantum key distribution (QKD). First demonstrated in 1989, QKD was designed to provide classical communications channels with a more secure method for delivering keys through the use of quantum mechanics.


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