相关实验视频

Updated: Apr 12, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

持续冷却的被困离子的快速光子介导纠,用于量子网络

Jameson O'Reilly¹, George Toh¹, Isabella Goetting¹

¹Duke Quantum Center, Departments of Electrical and Computer Engineering and Physics, <a href="https://ror.org/00py81415">Duke University</a>, Durham, North Carolina 27708, USA.

Physical review letters

|September 13, 2024

概括

研究人员使用单个光子纠了两个原子离子量子比特,实现了高保真度. 他们还引入了一种新的冷却方法,以每秒250的速度连续纠.

科学领域:

量子信息科学量子信息科学
原子物理原子物理
光学物理学的光学物理学

背景情况:

原子离子是量子计算的主要候选者,因为它们的连贯时间很长.
有效地纠远程量子比特对于可扩展的量子网络至关重要.
光子介导的纠为连接遥远的量子处理器提供了一条途径.

研究的目的:

为了证明两个被困的原子离子量子比特之间的高真实性纠.
开发一种连续纠生成方法,以提高量子计算效率.
为了整合交感冷却,实现不间断的量子运行.

主要方法:

使用收集的单一可见光子纠了两个被捕捉的原子离子量子比特.
通过集成的纤维光束分割器干扰光子并检测到巧合.
引入了用于交感冷却的离子,以消除回冷中断.

主要成果:

实现了离子量子比特的纠到贝尔状态,观察到的忠实度下限为F>94%.
以每秒250个纠事件的速度证明了连续的纠生成.
成功利用同情冷却来保持连续运行.

结论:

原子离子之间的高保真光子介导的纠是可以实现的.
交感冷却使持续的,高速的纠成为量子技术的关键.
这项工作推动了可扩展的基于离子的量子信息处理的发展.

更多相关视频

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

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

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...