论文标题
使用固态单光子源生成量子随机数
Quantum Random Number Generation using a Solid-State Single-Photon Source
论文作者
论文摘要
量子随机数（QRNG）利用量子机械现象的固有随机性。但是，此类过程的演示仅限于概率来源，例如自发参数下调或微弱的激光器，这些激光无法确定性地触发。在这里，我们在六角硼硝化硼中用量子发射器演示了QRNG。一种新兴的固态量子源，可以按需生成单个光子并在室温下运行。我们通过测量离开四个集成光子波导之一的单个光子来实现真正的随机数生成，然后根据国家标准和技术基准套件验证序列的随机性。我们的结果为制造片上确定性的随机数发生器和其他基于固态的量子光学设备开辟了新的途径。
Quantum random number generation (QRNG) harnesses the intrinsic randomness of quantum mechanical phenomena. Demonstrations of such processes have, however, been limited to probabilistic sources, for instance, spontaneous parametric down-conversion or faint lasers, which cannot be triggered deterministically. Here, we demonstrate QRNG with a quantum emitter in hexagonal boron nitride; an emerging solid-state quantum source that can generate single photons on demand and operates at room temperature. We achieve true random number generation through the measurement of single photons exiting one of four integrated photonic waveguides, and subsequently, verify the randomness of the sequences in accordance with the National Institute of Standards and Technology benchmark suite. Our results open a new avenue to the fabrication of on-chip deterministic random number generators and other solid-state-based quantum-optical devices.
