基于镜像协议的半量子密钥分发原理验证

IF 5.8 2区物理与天体物理 Q1 OPTICS

EPJ Quantum Technology Pub Date : 2021-12-20 DOI:10.1140/epjqt/s40507-021-00117-8

Siyu Han, Yutao Huang, Shang Mi, Xiaojuan Qin, Jindong Wang, Yafei Yu, Zhengjun Wei, Zhiming Zhang

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引用次数: 0

摘要

半量子密钥分发（SQKD）用于在量子方和经典方之间建立一串共享密钥。在此，我们报告了基于镜像协议的 SQKD 的首次原理验证实验演示，镜像协议是实验上最可行的 SQKD 协议，并配备了采用选择性调制方法的时相编码方案。实验在62.5 MHz的重复频率和69.8 kbps的高原始密钥速率下进行，发现 "SWAP-x-Z"（\(\mathrm{x}\in \{01,10\}\)）和 "CTRL-X "的平均量子比特错误率分别为4.56%和2.78%。这些结果证明了我们系统的可行性，这项研究对未来的 SQKD 实验研究很有帮助。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proof-of-principle demonstration of semi-quantum key distribution based on the Mirror protocol

Semi-quantum key distribution (SQKD) is used to establish a string of shared secret keys between a quantum party and a classical party. Here, we report the first proof-of-principle experimental demonstration of SQKD based on the Mirror protocol, which is the most experimentally feasible SQKD protocol, and equipped with time-phase encoding scheme employing the method of selective modulation. The experiment was performed at a repetition frequency of 62.5 MHz and a high raw key rate arrived at 69.8 kbps, and the average quantum bit error rate was found to be 4.56% and 2.78% for the “SWAP-x-Z” (\(\mathrm{x}\in \{01,10\}\)) and the “CTRL-X”, respectively. The results demonstrate the feasibility of our system, and this study is helpful for future research on SQKD experiments.

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来源期刊

EPJ Quantum Technology Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

7.70

自引率

7.50%

发文量

审稿时长

71 days

期刊介绍： Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. EPJ Quantum Technology covers theoretical and experimental advances in subjects including but not limited to the following: Quantum measurement, metrology and lithography Quantum complex systems, networks and cellular automata Quantum electromechanical systems Quantum optomechanical systems Quantum machines, engineering and nanorobotics Quantum control theory Quantum information, communication and computation Quantum thermodynamics Quantum metamaterials The effect of Casimir forces on micro- and nano-electromechanical systems Quantum biology Quantum sensing Hybrid quantum systems Quantum simulations.