相关实验视频
Updated: Jul 15, 2026
10:00
Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
12.9K
基于被困离子处理器的电信波长量子重复器节点
V Krutyanskiy1,2, M Canteri1,2, M Meraner1,2
1Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria.
Physical review letters
|June 9, 2023
概括
这项研究展示了一个量子重复器节点,使用被困的离子在50公里的光纤上产生纠. 这一突破为远距离量子网络和分布式量子计算铺平了道路.
科学领域:
- 量子信息科学 量子信息科学
- 量子通信技术 量子通信技术
- 原子物理 原子物理
背景情况:
- 量子重复器对于远距离量子通信至关重要.
- 被困离子为量子重复器节点提供了有前途的功能.
研究的目的:
- 为了呈现基于被困离子的量子重复器节点.
- 为了证明光纤的纠分布和交换.
- 为未来的量子网络预测系统的可扩展性.
主要方法:
- 利用被困离子作为单光子发射器,量子记忆和量子处理器.
- 通过两个独立的25公里光纤段建立纠.
- 演示了有效的纠交换,以在50公里通道中扩展纠.
- 为多节点纠分布计算系统改进.
主要成果:
- 在50公里的光学通道末端成功地建立了电信波长光子之间的纠.
- 在两个光纤段之间展示了高效的纠交换.
- 计算了系统改进,使纠分布在800公里以上的赫兹速率.
结论:
- 呈现的被困离子量子重复器节点是量子网络的可行构建模块.
- 该技术为量子传感器,原子钟和量子处理器的分布式网络提供了短期的途径.
- 通过这种方法,可以在长距离上实现高效的纠分布.
相关概念视频
01:19Mass 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...
01:22Carrier Generation and Recombination
Carrier generation is the process by which electron-hole pairs (EHPs) are created within the semiconductor. In direct-bandgap semiconductors, such as gallium arsenide (GaAs), this occurs efficiently when energy absorption prompts valence electrons to leap into the conduction band, leaving behind holes.
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...