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相关概念视频

Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

705
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
705

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有效的多维量子随机数发生器使用CMOS SPAD阵列.

Xingjian Li, Jianyong Hu, Bingkun Wang

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    概括
    此摘要是机器生成的。

    这项研究引入了一种新的方法,用于使用多维光子检测的高速随机数生成. 这种技术增强了单光子事件,大大提高了量子随机数发生器 (QRNG) 的效率.

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    科学领域:

    • 量子信息科学 量子信息科学
    • 光子学 是一个光子学.
    • 应用物理 应用物理

    背景情况:

    • 量子随机数生成器 (QRNG) 对于安全的通信和计算至关重要.
    • 目前的QRNG受到单光子探测器计数率的限制.
    • 提高单个光子检测事件的效率是提高生成率的关键.

    研究的目的:

    • 为高速随机数生成制定新战略.
    • 为了提高每个光子检测事件随机数生成的效率.
    • 为了利用多维光子检测来提高QRNG性能.

    主要方法:

    • 利用连贯状态光子的时间和空间连贯性.
    • 实施多维光子检测.
    • 使用芯片规模的CMOS集成单光子雪崩二极管阵列.
    • 从单光子事件中提取时间空间测量崩的随机性.

    主要成果:

    • 从单光子检测中实现了同时提取时空随机性.
    • 有效地提高了每个检测事件随机数生成的效率.
    • 证明了每次光子检测事件的提取量高达20位.
    • 达到2.067 Gbps的最大随机数生成速率.

    结论:

    • 多维光子检测为高速QRNG提供了可行的策略.
    • 开发的方法显著提高了随机数生成的效率.
    • 这种方法代表了实际量子随机数生成系统的技术进步.