Blind quantum computing method surpasses efficiency 'limit'

Friday, June 12, 2015 - 08:30 in Physics & Chemistry

(Phys.org)—Demonstrating that limits were made to be broken, physicists have overcome what was previously considered to be a natural and universal limit on the efficiency of a quantum cryptography task called blind quantum computing. The new method offers significant efficiency improvements and, in some cases, requires exponentially fewer communication resources to implement than previous methods did.

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