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Predictably random

Two experiments using entangled photons have successfully generated more randomness than consumed — at a level of security that is all but certain. They did so by exploiting non-locality, one of the most counterintuitive aspects of quantum mechanics.

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Fig. 1: Quantum and device-independent random number generators.

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Correspondence to Paul Skrzypczyk.

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Skrzypczyk, P. Predictably random. Nat. Phys. 17, 431–432 (2021).

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