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相关概念视频

Random Variables01:09

Random Variables

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A random variable is a single numerical value that indicates the outcome of a procedure. The concept of random variables is fundamental to the probability theory and was introduced by a Russian mathematician, Pafnuty Chebyshev, in the mid-nineteenth century.
Uppercase letters such as X or Y denote a random variable. Lowercase letters like x or y denote the value of a random variable. If X is a random variable, then X is written in words, and x is given as a number.
For example, let X = the...
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Random Sampling Method01:09

Random Sampling Method

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Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest. Among the various sampling methods used by...
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Carrier Generation and Recombination01:22

Carrier Generation and Recombination

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Carrier generation is the process by which electron-hole pairs (EHPs) are created within the semiconductor. In direct-bandgap semiconductors, such as gallium arsenide (GaAs), this occurs efficiently when energy absorption prompts valence electrons to leap into the conduction band, leaving behind holes.
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
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Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

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The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
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Randomized Experiments01:13

Randomized Experiments

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The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
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Van de Graaff Generator01:15

Van de Graaff Generator

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Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
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相关实验视频

Updated: Jul 16, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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大规模的并行10 Tbit/s物理随机位生成与混乱的微组合.

Yuqi Hu1,2, Qingsong Bai2, Xi Tang3

  • 1College of Artificial Intelligence, Southwest University, Chongqing, 400715, China.

Frontiers of optoelectronics
|September 22, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了一个新的物理随机位 (PRB) 发生器,使用芯片上的混乱微组. 该方案实现了超高的数据速率,为Pbits/s随机数生成提供了一条道路.

关键词:
混沌的混沌 在这里.微型机的使用方法物理随机位的物理随机位.

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科学领域:

  • 光子学和光学工程的工程.
  • 信息安全和密码学
  • 集成光学 集成光学 集成光学

背景情况:

  • 超快物理随机位 (PRB) 发生器对于各种科学和技术应用至关重要.
  • 现有的PRB计划在实现高数据速率和可扩展性方面面临挑战.
  • 集成光子设备为紧和高效的PRB生成提供了一个有前途的平台.

研究的目的:

  • 实验证明一种新的PRB生成方案,利用芯片规模集成共振器上的混乱微组.
  • 通过并行处理多个微牙来实现超高的随机位生成率.
  • 通过严格的统计测试来验证生成的随机位的质量.

主要方法:

  • 制造一个芯片规模的集成共振器来产生一个混乱的微组合器.
  • 利用微的每个牙作为PRB生成的独立源.
  • 后处理生成的信号以确保随机性和通过NIST统计测试.
  • 实验实现具有不同自由光谱范围 (FSR) 的微型,以探索可扩展性.

主要成果:

  • 展示了一个PRB方案,每通道达到12 Gbits/s,通过了NIST SP 800-22测试.
  • 使用具有294颗牙 (100GHz FSR) 的微实现了大约4 Tbits/s的总PRB速率.
  • 实现了更密集的微 (33.6 GHz FSR) 具有805个牙,产生总PRB速率约为10 Tbits/s.
  • 生成的随机位覆盖了广泛的波长范围 (1430-1675 nm).

结论:

  • 基于混乱微组的PRB方案为超高速随机位生成提供了可扩展和高并行性的解决方案.
  • 这种芯片规模的方法为实现Pbits/s物理随机位生成提供了一个低成本的途径.
  • 展示的技术对于需要高质量,高速率随机数字的应用具有显著的潜力.