AI 中文总结
本研究提出一种利用高速动能模式EMCCD捕获的光相干态空间量子噪声的量子随机数发生器，无需算法提取即可实现5.92 Gbps瞬时速率，序列通过NIST SP 800-22等测试，为高速可验证随机数生成提供了鲁棒方案。
AI 中文摘要
生成高速、可验证的随机数是密码学、大规模随机模拟和安全量子通信的基本需求。本文提出一种鲁棒的量子随机数发生器，其利用高速动能模式下工作的电子倍增电荷耦合器件（EMCCD）捕获的量子涨落空间分布。通过严格的探测器校准和散粒噪声分析，我们表征了从光的相干态空间强度涨落中获得的空间量子噪声，该量子噪声作为高熵源，在当前配置下无需算法随机数提取即可实现5.92 Gbps的瞬时随机比特生成率；不过，持续输出速率受串行电子读出带宽限制为7.5 Mbps。生成的序列成功通过NIST SP 800-22和Marsaglia Diehard统计测试套件，证实了该熵源的高质量和不可预测性。
英文摘要
Generating high-speed, verifiable random numbers is a fundamental requirement for cryptography, large-scale stochastic simulations, and secure quantum communication. Here, we present a robust quantum random number generator that utilizes the spatial distribution of quantum fluctuations captured by an electron-multiplying charge-coupled device operated in high-speed kinetic mode. Through rigorous detector calibration and shot-noise analysis, we characterize the spatial quantum noise obtained from the spatial intensity fluctuations of the coherent states of light. Such quantum noise serves as a high-entropy source, enabling an instantaneous random bit generation rate of 5.92 Gbps without algorithmic randomness extraction in the present configuration. The sustained output rate is, however, limited to 7.5 Mbps by the bandwidth of the serial electronic readout. The generated sequences successfully pass the NIST SP 800-22 and Marsaglia Diehard statistical test suites, confirming the high quality and unpredictability of the entropy source.
Comments7 pages, 4 figures; Accepted for publication in Applied Physics Letters
