%0 Journal Article %J Phys. Rev. Lett. %D 2020 %T Experimental Low-Latency Device-Independent Quantum Randomness %A Yanbao Zhang %A Lynden K. Shalm %A Joshua C. Bienfang %A Martin J. Stevens %A Michael D. Mazurek %A Sae Woo Nam %A Carlos Abellán %A Waldimar Amaya %A Morgan W. Mitchell %A Honghao Fu %A Carl Miller %A Alan Mink %A Emanuel Knill %X
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 bits with an average experiment time of less than 5 min per block and with certified error bounded by 2−64≈5.42×10−20.
%B Phys. Rev. Lett. %V 124 %8 12/24/2019 %G eng %U https://arxiv.org/abs/1812.07786 %N 010505 %R https://doi.org/10.1103/PhysRevLett.124.010505