Experimental Low-Latency Device-Independent Quantum Randomness
- 7 January 2020
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 124 (1), 010505
- https://doi.org/10.1103/physrevlett.124.010505
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 .
Funding Information
- National Science Foundation (1839223)
- H2020 European Research Council (280169, 713682)
- Seventh Framework Programme (641122)
- Ministerio de Economía y Competitividad (PGC2018-097056-B-I00, PCI2018-092973)
- Agència de Gestió d’Ajuts Universitaris i de Recerca (2017-SGR-1354)
- Fundación Cellex
- Generalitat de Catalunya
- H2020 Marie Skłodowska-Curie Actions (766402)
- European Association of National Metrology Institutes (17FUN03)
- FET Innovation Launchpad (800901)
- Severo Ochoa Programme (SEV-2015-0522)
- Quantum Technology Flagship (820393, 820405)
This publication has 31 references indexed in Scilit:
- Trevisan's Extractor in the Presence of Quantum Side InformationSIAM Journal on Computing, 2012
- Private randomness expansion with untrusted devicesJournal of Physics A: Mathematical and Theoretical, 2011
- Random numbers certified by Bell’s theoremNature, 2010
- Device-independent quantum key distribution secure against collective attacksNew Journal of Physics, 2009
- Device-Independent Security of Quantum Cryptography against Collective AttacksPhysical Review Letters, 2007
- The Statistical Strength of Nonlocality ProofsIEEE Transactions on Information Theory, 2005
- Nonlocal correlations as an information-theoretic resourcePhysical Review A, 2005
- Extractors and pseudorandom generatorsJournal of the ACM, 2001
- Quantum nonlocality as an axiomFoundations of Physics, 1994
- Proposed Experiment to Test Local Hidden-Variable TheoriesPhysical Review Letters, 1969