Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction

Quantum key distribution (QKD) has attracted much attention due to its unconditional security. High-dimensional quantum key distribution (HD-QKD) is a brand-new type of QKD protocol that has many excellent advantages. Nonetheless, practical imperfections in realistic devices that are not considered...

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Detalles Bibliográficos
Autores principales: Wang, Yang, Du, Ge-Hai, Xu, Yang-Bin, Zhou, Chun, Jiang, Mu-Sheng, Li, Hong-Wei, Bao, Wan-Su
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9026895/
https://www.ncbi.nlm.nih.gov/pubmed/35455123
http://dx.doi.org/10.3390/e24040460
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author Wang, Yang
Du, Ge-Hai
Xu, Yang-Bin
Zhou, Chun
Jiang, Mu-Sheng
Li, Hong-Wei
Bao, Wan-Su
author_facet Wang, Yang
Du, Ge-Hai
Xu, Yang-Bin
Zhou, Chun
Jiang, Mu-Sheng
Li, Hong-Wei
Bao, Wan-Su
author_sort Wang, Yang
collection PubMed
description Quantum key distribution (QKD) has attracted much attention due to its unconditional security. High-dimensional quantum key distribution (HD-QKD) is a brand-new type of QKD protocol that has many excellent advantages. Nonetheless, practical imperfections in realistic devices that are not considered in the theoretical security proof may have an impact on the practical security of realistic HD-QKD systems. In this paper, we research the influence of a realistic intensity modulator on the practical security of HD-QKD systems with the decoy-state method and finite-key effects. We demonstrate that there is a certain impact in the secret key rate and the transmission distance when taking practical factors into security analysis.
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spelling pubmed-90268952022-04-23 Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction Wang, Yang Du, Ge-Hai Xu, Yang-Bin Zhou, Chun Jiang, Mu-Sheng Li, Hong-Wei Bao, Wan-Su Entropy (Basel) Article Quantum key distribution (QKD) has attracted much attention due to its unconditional security. High-dimensional quantum key distribution (HD-QKD) is a brand-new type of QKD protocol that has many excellent advantages. Nonetheless, practical imperfections in realistic devices that are not considered in the theoretical security proof may have an impact on the practical security of realistic HD-QKD systems. In this paper, we research the influence of a realistic intensity modulator on the practical security of HD-QKD systems with the decoy-state method and finite-key effects. We demonstrate that there is a certain impact in the secret key rate and the transmission distance when taking practical factors into security analysis. MDPI 2022-03-26 /pmc/articles/PMC9026895/ /pubmed/35455123 http://dx.doi.org/10.3390/e24040460 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Yang
Du, Ge-Hai
Xu, Yang-Bin
Zhou, Chun
Jiang, Mu-Sheng
Li, Hong-Wei
Bao, Wan-Su
Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction
title Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction
title_full Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction
title_fullStr Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction
title_full_unstemmed Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction
title_short Practical Security of High-Dimensional Quantum Key Distribution with Intensity Modulator Extinction
title_sort practical security of high-dimensional quantum key distribution with intensity modulator extinction
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9026895/
https://www.ncbi.nlm.nih.gov/pubmed/35455123
http://dx.doi.org/10.3390/e24040460
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