Experimental Low-Latency Device-Independent Quantum Randomness.

ABSTRACT: Applications of randomness such as private key generation and public randomness beacons require small blocks of certified random bits on demand. Device-independent quantum random number generators can produce such random bits, but existing quantum-proof protocols and loophole-free implementations suffer from high latency, requiring many hours to produce any random bits. We demonstrate device-independent quantum randomness generation from a loophole-free Bell test with a more efficient quantum-proof protocol, obtaining multiple blocks of 512 random bits with an average experiment time of less than 5 min per block and with a certified error bounded by 2^{-64}≈5.42×10^{-20}.

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC7931621 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature