Postprocessing for quantum random number generators: entropy evaluation and randomness extraction

Xiongfeng Ma, 2, ∗ Feihu Xu, † He Xu, Xiaoqing Tan, 2, ‡ Bing Qi, § and Hoi-Kwong Lo ¶ Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing, China Center for Quantum Information and Quantum Control, Department of Physics and Department of Electrical & Computer Engineering, University of Toronto, Toronto, Ontario, Canada Department of Mathematics, College of Information Science and Technology, Jinan University, Guangzhou, Guangdong, China