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基于不确定性关系的一维连续变量量子密钥分发的安全性分析

Security Analysis of Unidimensional Continuous-Variable Quantum Key Distribution Using Uncertainty Relations.

作者信息

Wang Pu, Wang Xuyang, Li Yongmin

机构信息

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China.

Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China.

出版信息

Entropy (Basel). 2018 Mar 1;20(3):157. doi: 10.3390/e20030157.

DOI:10.3390/e20030157
PMID:33265248
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7512673/
Abstract

We study the equivalence between the entanglement-based scheme and prepare-and-measure scheme of unidimensional (UD) continuous-variable quantum key distribution protocol. Based on this equivalence, the physicality and security of the UD coherent-state protocols in the ideal detection and realistic detection conditions are investigated using the Heisenberg uncertainty relation, respectively. We also present a method to increase both the secret key rates and maximal transmission distances of the UD coherent-state protocol by adding an optimal noise to the reconciliation side. It is expected that our analysis will aid in the practical applications of the UD protocol.

摘要

我们研究了基于纠缠的方案与一维（UD）连续变量量子密钥分发协议的制备与测量方案之间的等效性。基于这种等效性，分别利用海森堡不确定性关系研究了理想检测和实际检测条件下UD相干态协议的物理性和安全性。我们还提出了一种通过在协调端添加最优噪声来提高UD相干态协议的密钥率和最大传输距离的方法。预计我们的分析将有助于UD协议的实际应用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/a5535558a0de/entropy-20-00157-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/9b23a83386bd/entropy-20-00157-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/898041cf57eb/entropy-20-00157-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/f76872cd31a8/entropy-20-00157-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/176432877c34/entropy-20-00157-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/44d82ba74ac0/entropy-20-00157-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/bdb60d042b11/entropy-20-00157-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/e72d8551c65f/entropy-20-00157-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/896aab39ed03/entropy-20-00157-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/682107819fe3/entropy-20-00157-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/a5535558a0de/entropy-20-00157-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/9b23a83386bd/entropy-20-00157-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/898041cf57eb/entropy-20-00157-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/f76872cd31a8/entropy-20-00157-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/176432877c34/entropy-20-00157-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/44d82ba74ac0/entropy-20-00157-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/bdb60d042b11/entropy-20-00157-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/e72d8551c65f/entropy-20-00157-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/896aab39ed03/entropy-20-00157-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/682107819fe3/entropy-20-00157-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7555/7512673/a5535558a0de/entropy-20-00157-g010.jpg

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引用本文的文献

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本文引用的文献

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Practical continuous-variable quantum key distribution without finite sampling bandwidth effects.无有限采样带宽效应的实用连续变量量子密钥分发
Opt Express. 2016 Sep 5;24(18):20481-93. doi: 10.1364/OE.24.020481.
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Implementation of continuous-variable quantum key distribution with composable and one-sided-device-independent security against coherent attacks.具有针对相干攻击的可组合和单边设备无关安全性的连续变量量子密钥分发的实现。
Nat Commun. 2015 Oct 30;6:8795. doi: 10.1038/ncomms9795.
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Continuous variable quantum key distribution with modulated entangled states.
连续变量量子密钥分发与调制纠缠态。
Nat Commun. 2012;3:1083. doi: 10.1038/ncomms2097.
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Continuous-variable quantum key distribution protocols over noisy channels.噪声信道上的连续变量量子密钥分发协议
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Collective attacks and unconditional security in continuous variable quantum key distribution.连续变量量子密钥分发中的集体攻击与无条件安全性
Phys Rev Lett. 2005 Jan 21;94(2):020504. doi: 10.1103/PhysRevLett.94.020504.
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