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.
| Original language | English |
|---|---|
| Article number | 010505 |
| Journal | Physical Review Letters |
| Volume | 124 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 7 2020 |
Funding
The work is supported by the National Science Foundation RAISE-TAQS (Grant No. 1839223); the European Research Council (ERC) projects AQUMET (280169), ERIDIAN (713682); European Union projects QUIC (Grant Agreement no. 641122) and FET Innovation Launchpad UVALITH (800901); the Spanish MINECO projects OCARINA (Grant No. PGC2018-097056-B-I00) and Q-CLOCKS (PCI2018-092973), the Severo Ochoa programme (SEV-2015-0522); Agència de Gestió d’Ajuts Universitaris i de Recerca (AGAUR) project (2017-SGR-1354); Fundació Privada Cellex and Generalitat de Catalunya (CERCA program); Quantum Technology Flagship projects MACQSIMAL (820393) and QRANGE (820405); Marie Skłodowska-Curie ITN ZULF-NMR (766402); European Association of National Metrology Institutes (EURAMET) EMPIR project USOQS (17FUN03). Contributions to this article by workers at NIST, an agency of the U.S. Government, are not subject to U.S. copyright.