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  1. 首页
  3. 一个芯片规模的原子束时钟.
  1. 首页
  3. 一个芯片规模的原子束时钟.

相关实验视频

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

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一个芯片规模的原子束时钟.

Gabriela D Martinez1,2, Chao Li3,4, Alexander Staron1,2

  • 1Time and Frequency Division, National Institute of Standards and Technology, Boulder, CO, USA.

Nature communications
|June 13, 2023

在PubMed 上查看摘要

概括
此摘要是机器生成的。

我们展示了一个芯片规模的原子束时钟,使用连贯人口陷 (CPT) 进行精确的计时. 这种新设备实现了高频稳定性,为下一代原子钟铺平了道路.

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科学领域:

  • 原子物理学和精确测量.
  • 发展小型原子钟的发展.
  • 量子光学和光谱学. 量子光学和光谱学.

背景情况:

  • 原子束对于商业频率标准至关重要.
  • 现有的芯片尺寸钟表在长期稳定性方面存在局限性.
  • 一致人口陷 (CPT) 是原子钟的一个关键技术.

研究的目的:

  • 为了演示芯片规模的微波原子束时钟.
  • 在被动的原子束装置中利用CPT审讯.
  • 为了评估开发的芯片尺度时钟的频率稳定性.

主要方法:

  • 使用阳极粘合玻璃和Si晶片制造密封真空电池.
  • 使用石版定义的毛细血管生成鲁比 (Rb) 原子束.
  • 在10毫米距离的原子束的Ramsey CPT光谱.

主要成果:

  • 一个原型芯片规模微波原子束时钟的演示.
  • 实现了大约1.2×10−9/τ1/2的分数频率稳定性,整合时间从1秒到250秒.
  • 稳定性受到检测噪声的限制.

结论:

  • 展示的芯片级原子束时钟显示,它有望超过当前的稳定性限制.
  • 优化的设备可以在10-12以下实现长期稳定.
  • 这项技术为先进的,紧的原子钟提供了途径.