Photonic implementation of device-independent quantum randomness expansion
Xingjian Zhang, Minghan Li, Xiongfeng Ma, Qiang Zhang, Jingyun Fan, Jian-Wei Pan · 2021
We realize the first device-independent quantum randomness expansion experiment secure against quantum side information through quantum probability estimation. 1.08×108bits of near-uniform random bits are expanded at a latency of about 13.1 h from a photonic loophole-free Bell test with record-high single-photon detection efficiency.