Search research articles

Search research articles

相关实验视频

Updated: Jun 22, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

使用半导体单光子源的高速城市间量子密钥分布.

Jingzhong Yang¹, Zenghui Jiang¹, Frederik Benthin¹

¹Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstraße 2, 30167, Hannover, Germany.

Light, science & applications

|July 2, 2024

概括

相关概念视频

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序

Same author

Trichotillomania: The interplay between emotional states, urges and hair pulling episodes.

Comprehensive psychiatry·2026

Same author

Asymmetric two-photon response of an incoherently driven quantum emitter.

Nature communications·2026

Same author

Effectiveness of the school-based internet intervention StresSOS for the prevention of mental health problems in young people: a randomized controlled trial as part of the ProHEAD consortium.

Journal of child psychology and psychiatry, and allied disciplines·2026

Same author

Time-bin encoded quantum key distribution over 120 km with a telecom quantum dot source.

Light, science & applications·2026

Same author

Development and evaluation of a web-based toolkit to inform mental health professionals about digital mental health interventions for eating disorders.

Journal of eating disorders·2026

Same author

Smartphone-supported Positive Adjustment Coping Intervention (PACI) for couples undergoing fertility treatment: A randomised controlled trial.

PloS one·2025

关于 JoVE

概览领导团队博客 JoVE 帮助中心

作者

出版流程编辑委员会范围与政策同行评审常见问题投稿

图书馆员

用户评价订阅访问资源图书馆顾问委员会常见问题

研究

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

这项研究展示了第一个使用半导体量子点的城市间量子密钥分布 (QKD). 这一安全通信的突破,在79公里的光纤链路上实现了创纪录的关键速率.

科学领域:

量子信息科学量子信息科学
光电学是指光电子产品.
安全的通信安全的通信

背景情况:

量子密钥分布 (QKD) 提供了信息理论上的防盗安全.
按需量子光源对于提高QKD安全性和性能至关重要.
半导体量子点 (QD) 由于决定性单光子发射,对量子通信具有前景.

研究的目的:

报告第一个城市间QKD实验,利用明亮的,决定性的单光子源.
在现实QKD网络中评估半导体量子点的性能.
通过长光纤链路建立安全密钥生成的新基准.

主要方法:

实现一个带有偏振编码的BB84协议.
在一个圆形的布拉格格结构中利用半导体量子点的单个光子.
通过汉诺威和布朗施威格之间的79公里的城市间光纤连接进行传输.

主要成果:

展示了每脉冲创纪录的最高机密密钥位 (4.8 × 10-5).
实现了大约0.65%的平均量子位误差比率.
确定了28.11dB的非对称最大可容忍损失,相当于144公里的标准光纤.

更多相关视频

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

相关实验视频

Last Updated: Jun 22, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

结论:

确定性半导体量子点源对于最先进的QKD是可行的.
这些来源为改进QKD协议提供了巨大的潜力,包括测量设备独立和量子重复器应用.
这项工作为实用,高性能量子通信网络铺平了道路.