|Title||Experimental Low-Latency Device-Independent Quantum Randomness|
|Publication Type||Journal Article|
|Year of Publication||2020|
|Authors||Zhang, Y, Shalm, LK, Bienfang, JC, Stevens, MJ, Mazurek, MD, Nam, SWoo, Abellán, C, Amaya, W, Mitchell, MW, Fu, H, Miller, C, Mink, A, Knill, E|
|Journal||Phys. Rev. Lett.|
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.