A High-Randomness and High-Stability Electronic Quantum Random Number Generator without Post Processing  

作　　者：刘宇轩 黄可馨 白玉明 杨哲 李俊林 Yu-Xuan Liu;Ke-Xin Huang;Yu-Ming Bai;Zhe Yang;Jun-Lin Li(State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing 100084,China)

机构地区：[1]State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing 100084,China

出　　处：《Chinese Physics Letters》2023年第7期13-17,共5页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51727805)。

摘　　要：Random numbers are one of the key foundations of cryptography.This work implements a discrete quantum random number generator(QRNG)based on the tunneling effect of electrons in an avalanche photo diode.Without any post-processing and conditioning,this QRNG can output raw sequences at a rate of 100 Mbps.Remarkably,the statistical min-entropy of the 8,000,000 bits sequence reaches 0.9944 bits/bit,and the min-entropy validated by NIST SP 800-90B reaches 0.9872 bits/bit.This metric is currently the highest value we have investigated for QRNG raw sequences.Moreover,this QRNG can continuously and stably output raw sequences with high randomness over extended periods.The system produced a continuous output of 1,174 Gbits raw sequence for a duration of 11,744 s,with every 8 Mbits forming a unit to obtain a statistical min-entropy distribution with an average value of 0.9892 bits/bit.The statistical min-entropy of all data(1,174 Gbits)achieves the value of0.9951 bits/bit.This QRNG can produce high-quality raw sequences with good randomness and stability.It has the potential to meet the high demand in cryptography for random numbers with high quality.

关 键 词：RANDOM ENTROPY VALUE 

分 类 号：O413[理学—理论物理] TN918.1[理学—物理]