相关实验视频

Updated: Jul 1, 2025

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

离子陷与真空高数值孔径成像,用于双种模块化量子计算机

Allison L Carter¹, Jameson O'Reilly^1,2, George Toh^1,2

¹Joint Quantum Institute and Department of Physics, University of Maryland, College Park, Maryland 20742, USA.

The Review of scientific instruments

|March 13, 2024

概括

研究人员使用离子陷系统实现了量子网络的最高光子收集效率. 这一突破提高了可扩展量子计算和网络应用的纠生成率.

科学领域:

量子信息科学量子信息科学
原子,分子和光学物理学

背景情况:

光子互连对于可扩展的量子计算和量子网络至关重要.
远程量子比特之间的高效纠生成对于将光子链接集成到模块化量子计算机中至关重要.

研究的目的:

为量子网络提供具有高自由空间光子收集效率的离子陷系统.
为了证明光学元件对离子性质的近距离影响的缓解.

主要方法:

使用了一对真空无球透镜,其数值光圈为0.8.8.
从138Ba+离子发出的493nm光子被合到单模纤维中.
研究和减轻了透镜对离子位置和运动的近距离影响.

主要成果:

在量子网络应用中实现了报告中最高的自由空间光子收集效率.
成功将10%的发射光子合到单模纤维中.
证明有效地减轻了透镜诱导的近距离对离子的影响.

结论:

开发的离子陷系统显著提高了光子收集效率,这是推动量子网络发展的关键因素.
这项工作为更强大,更有效的纠生成提供了途径,这对未来的量子技术至关重要.

更多相关视频

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

相关概念视频

Mass Analyzers: Common Types

Mass Analyzers: Common Types

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...