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Hybrid Continuous-discrete Variable Quantum Key Distribution
- Study on Optical Communications Issue 3, Pages: 24-31(2023)
- 作者机构：
1.东南大学电子科学与工程学院，南京 210018
2.剑桥大学工程学院，英国剑桥 CB2 1PZ
- 作者简介：
- 基金信息：
DOI：10.13756/j.gtxyj.2023.03.005
CLC： TN918Published：10 June 2023，
Received：09 August 2022，
Revised：16 August 2022，
扫 描 看 全 文
靳安然，李鹤.混合连续—离散变量量子密钥分发[J].光通信研究，2023(3):24-31.
Jin A R, Li H. Hybrid Continuous-discrete Variable Quantum Key Distribution[J]. Study on Optical Communications, 2023(3):24-31.
靳安然，李鹤.混合连续—离散变量量子密钥分发[J].光通信研究，2023(3):24-31. DOI： 10.13756/j.gtxyj.2023.03.005.
Jin A R, Li H. Hybrid Continuous-discrete Variable Quantum Key Distribution[J]. Study on Optical Communications, 2023(3):24-31. DOI： 10.13756/j.gtxyj.2023.03.005.
摘要
作为量子密码学的主要应用之一，量子密钥分发（QKD）是一种密钥的安全传输方式。相比于传统的通信方式，基于量子力学基本原理的QKD协议在理论上具备无条件安全性。一般来说，QKD过程中量子态的制备和传输需要对光子进行编码、传输和测量。近年来，QKD在理论与工程应用方面取得了极大的发展，也推动了国内外QKD网络的部署。文章对近期混合连续—离散变量QKD的几项工作进行了重点讨论，结合离散变量QKD的编码方式以及连续变量QKD的探测方式对实际搭建QKD信道的优缺点进行了分析，并进一步梳理与总结了现阶段混合连续—离散变量QKD的研究重点和难点。
Abstract
As one of the main applications of quantum cryptography
Quantum Key Distribution (QKD) is a promising secure key transmission method. Compared with traditional communication methods
QKD protocols based on the basic principles of quantum mechanics have unconditional security in theory. In general
the preparation and transmission of quantum states during QKD require the encoding
transmission
and measurement of photons. In recent years
QKD has made great progress in theory and engineering applications
and has also promoted the deployment of QKD networks all over the world. This paper focuses on several recent works on hybrid continuous-discrete variable QKD protocols. Combined with the coding method of discrete variable QKD and the detection method of continuous variable QKD
the advantages and disadvantages of building a QKD channel in practice are analyzed. Given the current stage of hybrid continuous-discrete variable QKD
we summarized its potential research priorities and difficulties in the future.
关键词
量子密钥分发光通信系统安全性证明后处理
Keywords
QKDoptical communication systemsecurity proofpost-processing
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