用于量子随机数的 Metalens 阵列

IF 11.9 1区 物理与天体物理 Q1 PHYSICS, APPLIED Applied physics reviews Pub Date : 2024-09-10 DOI:10.1063/5.0224766
Yubin Fan, Shufan Chen, Xiaoyuan Liu, Xiaoyu Che, Xiaodong Qiu, Mu Ku Chen, Din Ping Tsai
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引用次数: 0

摘要

利用固有量子不确定性的量子随机数生成(QRNG)在集成光子架构领域引起了极大的兴趣,其应用领域包括量子密码学、量子非局域性测试等。集成到光子芯片中的 QRNG 结构紧凑、能耗低、坚固耐用、速度快且具有成本效益,而之前的大多数研究工作都集中在体光学领域。在此,我们以金属伦阵列纠缠源为基础,通过元器件实验实现了小型化、高维量子随机数发生器,无需后随机性提取。具体来说,该设备具有每平方毫米 100 个通道的高密度输出。这种芯片级量子随机性源无需进行后随机性提取就能获得随机数阵列,并能为需要安全密钥或随机性的量子应用实现紧凑集成。我们的方法展示了量子应用在安全密钥生成和随机性方面的潜力。
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Metalens array for quantum random number
Quantum random number generation (QRNG) leveraging intrinsic quantum uncertainty has attracted significant interest in the field of integrated photonic architecture, with applications in quantum cryptography, tests of quantum nonlocality, and beyond. The demand for compact, low-energy consumption, robust, fast, and cost-effective QRNGs integrated into photonic chips is highlighted, whereas most previous works focused on bulk optics. Here, based on the metalens array entangled source, we experimentally realized a miniaturized, high-dimensional quantum random number generator via a meta-device without post-randomness extraction. Specifically, the device has a high-density output with 100 channels per square millimeter. This chip-scale quantum randomness source can obtain random number arrays without post-randomness extraction and enable compact integration for quantum applications needing secure keys or randomness. Our approach demonstrates potential in secure key generation and randomness for quantum applications.
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来源期刊
Applied physics reviews
Applied physics reviews PHYSICS, APPLIED-
CiteScore
22.50
自引率
2.00%
发文量
113
审稿时长
2 months
期刊介绍: Applied Physics Reviews (APR) is a journal featuring articles on critical topics in experimental or theoretical research in applied physics and applications of physics to other scientific and engineering branches. The publication includes two main types of articles: Original Research: These articles report on high-quality, novel research studies that are of significant interest to the applied physics community. Reviews: Review articles in APR can either be authoritative and comprehensive assessments of established areas of applied physics or short, timely reviews of recent advances in established fields or emerging areas of applied physics.
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