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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

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Experimental Low-Latency Device-Independent Quantum Randomness.

Zhang Yanbao Y Shalm Lynden K LK Bienfang Joshua C JC Stevens Martin J MJ Mazurek Michael D MD Nam Sae Woo SW Abellán Carlos C Amaya Waldimar W Mitchell Morgan W MW Fu Honghao H Miller Carl A CA Mink Alan A Knill Emanuel E

Physical review letters 20200101 1

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-pr ...[more]

PMID: 31976704

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