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相关概念视频

Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

600
The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
600

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相关实验视频

Updated: Jun 27, 2025

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
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捕获离子的多站点集成光学定位.

Joonhyuk Kwon1, William J Setzer2, Michael Gehl2

  • 1Sandia National Laboratories, Albuquerque, NM, 87185, USA. jookwon@sandia.gov.

Nature communications
|May 2, 2024
PubMed
概括

研究人员开发了集成光子学来控制多个-171离子 (Yb+) 用于量子计算. 这种可扩展的方法使用波导和分离器来传输光学信号,推进被困离子量子系统.

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相关实验视频

Last Updated: Jun 27, 2025

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科学领域:

  • 量子信息科学 量子信息科学
  • 综合光子学 综合光子学
  • 原子,分子和光学物理学

背景情况:

  • 进步的量子计算机和传感器需要增加量子比特的数量.
  • 在被困离子系统中,将光信号传递到单个离子的规模化是一个重大的技术挑战.

研究的目的:

  • 通过使用集成光子学,展示一种可扩展的方法,用于在表面陷中光学地处理多个Yb+离子.
  • 提供所有必要的波长,以完全控制和操作量子比特.

主要方法:

  • 使用集成波导和多模式干扰仪 (MMI) 分离器来传输光学信号.
  • 使用波导用于多普勒冷却,状态准备,连贯操作和检测E2时钟过渡.
  • 通过使用MMI分离器,在两个不同的陷位置的两个不同的过渡上演示了同时进行Rabi flopping.

主要成果:

  • 成功地解决了每波长单个光学输入的多个171Yb+离子.
  • 在E2时钟转换上进行过敏光谱和拉比波动的测量.
  • 展示了两个离子在不同位置的同时连贯的操作.

结论:

  • 使用集成波导和MMI分离器的证明方法是朝着可扩展的被困离子量子信息系统迈出的关键一步.
  • 这项工作为原子钟和量子计算应用程序的可扩展的集成光子学铺平了道路.
  • 该方法使多个离子的高效光学定位和控制成为可能,克服了关键的缩放瓶.