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相关概念视频

Semiconductors01:22

Semiconductors

There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...

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相关实验视频

Updated: May 12, 2026

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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在中形成可编程量子发射器.

K Jhuria1, V Ivanov2,3, D Polley4,5

  • 1Accelerator Technology and Applied Physics Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. kaushalya@lbl.gov.

Nature communications
|May 27, 2024
PubMed
概括
此摘要是机器生成的。

我们展示了使用激光脉冲和气对量子发射器的精确控制. 这允许选择性写入和删除发光缺陷,以实现先进的量子位集成.

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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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相关实验视频

Last Updated: May 12, 2026

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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科学领域:

  • 量子计算是一种量子计算.
  • 材料科学是一种材料科学.
  • 光电学是指光电子产品.

背景情况:

  • 量子发射器对可扩展的量子比特集成有希望.
  • 缺陷控制对于可靠的量子设备制造至关重要.
  • 现有的方法缺乏单中心精度来处理缺陷.

研究的目的:

  • 为了证明在中对量子发射器形成的局部可编程控制.
  • 为了研究在激活和置特定缺陷中的作用.
  • 为了增强精选量子发射器的亮度和性能.

主要方法:

  • 利用秒激光脉冲进行局部缺陷修改.
  • 采用以为基础的回火用于缺陷激活和被动化.
  • 碳植入和热化,以创建特定的缺陷中心.
  • 密度函数理论 (DFT) 计算以建模缺陷行为.

主要成果:

  • 在单个中心水平上实现了选择性写作和光发射缺陷的擦除.
  • 证明了T和Ci中心的可编程形成,同时使G中心被动化.
  • 通过DFT观察到Ci中心的显著亮度增强,其中气存在.
  • Fs-激光脉冲使局部控制用于发射器操纵.

结论:

  • 通过fs-laser脉冲进行局部控制,为可编程量子发射阵列提供了一条途径.
  • 由增强的Ci中心是一个可行的电信S频段量子发射器.
  • 这种技术推动了基于的量子技术向大规模集成迈进.