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Experimental Low-Latency Device-Independent Quantum Randomness



Yanbao Zhang, Lynden K. Shalm, Joshua C. Bienfang, Martin J. Stevens, Michael D. Mazurek, Sae Woo Nam, Carlos Abellan, Waldimar Amaya, Morgan Mitchell, Honghao Fu, Carl A. Miller, Alan Mink, Emanuel H. Knill


Applications of randomness such as private key generation and public randomness beacons require small blocks of certified random bits on demand. Device-independent quantum randomness can produce such random bits, but existing quantum-proof protocols and experimental implementations suffer from high latency, requiring hours to produce any random bits. We demonstrate device independent quantum randomness from a loophole-free Bell test with a much more efficient quantum proof protocol, obtaining multiple blocks of 512 bits in less than 5 min of experiment time on average and with certified error bounded by 2^-64}=5.4x10^-20}.
Physical Review Letters


Bell tests, quantum randomness generation.


Zhang, Y. , Shalm, L. , Bienfang, J. , Stevens, M. , Mazurek, M. , Nam, S. , Abellan, C. , Amaya, W. , Mitchell, M. , Fu, H. , Miller, C. , Mink, A. and Knill, E. (2020), Experimental Low-Latency Device-Independent Quantum Randomness, Physical Review Letters, [online], (Accessed April 25, 2024)
Created January 9, 2020, Updated February 22, 2021