Bustard Philip J, England Duncan G, Nunn Josh, Moffatt Doug, Spanner Michael, Lausten Rune, Sussman Benjamin J
Opt Express. 2013 Dec 2;21(24):29350-7. doi: 10.1364/OE.21.029350.
Random number sequences are a critical resource in modern information processing systems, with applications in cryptography, numerical simulation, and data sampling. We introduce a quantum random number generator based on the measurement of pulse energy quantum fluctuations in Stokes light generated by spontaneously-initiated stimulated Raman scattering. Bright Stokes pulse energy fluctuations up to five times the mean energy are measured with fast photodiodes and converted to unbiased random binary strings. Since the pulse energy is a continuous variable, multiple bits can be extracted from a single measurement. Our approach can be generalized to a wide range of Raman active materials; here we demonstrate a prototype using the optical phonon line in bulk diamond.
随机数序列是现代信息处理系统中的关键资源，在密码学、数值模拟和数据采样等领域有着广泛应用。我们介绍了一种基于自发受激拉曼散射产生的斯托克斯光脉冲能量量子涨落测量的量子随机数发生器。利用快速光电二极管测量了高达平均能量五倍的明亮斯托克斯脉冲能量涨落，并将其转换为无偏随机二进制串。由于脉冲能量是一个连续变量，单次测量可以提取多个比特。我们的方法可以推广到多种拉曼活性材料；在此，我们展示了一个使用块状金刚石中的光学声子线的原型。
