利用量子点单光子源实现非可信中间中继结构

IF 18.4 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
Mi Zou, Yu-Ming He, Yizhi Huang, Jun-Yi Zhao, Bin-Chen Li, Yong-Peng Guo, Xing Ding, Mo-Chi Xu, Run-Ze Liu, Geng-Yan Zou, Zhen Ning, Xiang You, Hui Wang, Wen-Xin Pan, Hao-Tao Zhu, Ming-Yang Zheng, Xiu-Ping Xie, Dandan Qin, Xiao Jiang, Yong-Heng Huo, Qiang Zhang, Chao-Yang Lu, Xiongfeng Ma, Teng-Yun Chen, Jian-Wei Pan
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引用次数: 0

摘要

为了充分发挥量子技术的潜力,需要量子网络连接不同的系统,加强在计算、密码学和计量学方面的应用。这些网络的核心是量子中继,它可以促进远距离纠缠分布和量子通信。在这项工作中,我们提出了一个使用高质量单光子源的模块化和可扩展的量子中继架构。该网络包含三个不可信的中间节点,重复频率为304.52 MHz。我们使用独立于测量设备的协议来演示在覆盖长达300公里的光纤上建立安全密钥。本研究强调了量子中继中单光子源在增强信息传输、扩大网络覆盖和提高部署灵活性方面的潜力,在未来的量子网络中具有广阔的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Realization of an untrusted intermediate relay architecture using a quantum dot single-photon source

Realization of an untrusted intermediate relay architecture using a quantum dot single-photon source

To fully exploit the potential of quantum technologies, quantum networks are needed to link different systems, enhancing applications in computing, cryptography and metrology. Central to these networks are quantum relays that can facilitate long-distance entanglement distribution and quantum communication. In this work, we present a modular and scalable quantum relay architecture using a high-quality single-photon source. The proposed network incorporates three untrusted intermediate nodes and is capable of a repetition rate of 304.52 MHz. We use a measurement-device-independent protocol to demonstrate secure key establishment over fibres covering up to 300 km. This study highlights the potential of single-photon sources in quantum relays to enhance information transmission, expand network coverage and improve deployment flexibility, with promising applications in future quantum networks.

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来源期刊
Nature Physics
Nature Physics 物理-物理:综合
CiteScore
30.40
自引率
2.00%
发文量
349
审稿时长
4-8 weeks
期刊介绍: Nature Physics is dedicated to publishing top-tier original research in physics with a fair and rigorous review process. It provides high visibility and access to a broad readership, maintaining high standards in copy editing and production, ensuring rapid publication, and maintaining independence from academic societies and other vested interests. The journal presents two main research paper formats: Letters and Articles. Alongside primary research, Nature Physics serves as a central source for valuable information within the physics community through Review Articles, News & Views, Research Highlights covering crucial developments across the physics literature, Commentaries, Book Reviews, and Correspondence.
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