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Numerical security analysis for quantum key distribution with partial state characterization

delete2025-05-28
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OA
AI
G
Guillermo Currás-Lorenzo *
Á
Álvaro Navarrete
J
Javier Núñez-Bon
M
Margarida Pereira
M
Marcos Curty
DOI:10.1088/2058-9565/addae1delete
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摘要

摘要

En 中文
数值安全性证明为评估量子密钥分发(QKD)协议的密钥生成速率提供了一种灵活的方法。然而,现有方法通常需要完美的源表征,这在实践中由于存在不可避免的编码不完美和侧信道而难以实现。在本文中,我们介绍了一种基于半定规划的新的安全性证明技术,该技术能够在仅获取发射态部分信息的情况下,评估制备-测量和测量设备无关型QKD协议的密钥生成速率,相比现有的数值技术显著提高了适用性和实际相关性。我们证明,与针对部分态表征的当前分析方法相比,在可实现密钥生成速率方面,我们的方法具有更优表现,尤其是在编码空间为非量子比特的协议中。这标志着在理论安全性证明与实践QKD实现之间弥合差距方面取得了重要进展。
Keyword:
quantum key distribution
security proof
implementation security
semidefinite programming
partial characterization

期刊

Quantum Science and Technology 封面图
Quantum Science and Technology
IF:
5
论文数:
1.4K
被引数:
5.1K

机构

U
Univ Vigo
学者数:
459
论文数: 245
被引数: 67
引用论文

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