Effects of experimental impairments on the security of continuous-variable quantum key distribution
Quantum Key Distribution (QKD) is a cutting-edge communication method that enables secure communication between two parties. Continuous-variable QKD (CV-QKD) is a promising approach to QKD that has several advantages over traditional discrete-variable systems. Despite its potential, CV-QKD systems a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-06-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402303877X |
| _version_ | 1797813749074100224 |
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| author | Andres Ruiz-Chamorro Daniel Cano Aida Garcia-Callejo Veronica Fernandez |
| author_facet | Andres Ruiz-Chamorro Daniel Cano Aida Garcia-Callejo Veronica Fernandez |
| author_sort | Andres Ruiz-Chamorro |
| collection | DOAJ |
| description | Quantum Key Distribution (QKD) is a cutting-edge communication method that enables secure communication between two parties. Continuous-variable QKD (CV-QKD) is a promising approach to QKD that has several advantages over traditional discrete-variable systems. Despite its potential, CV-QKD systems are highly sensitive to optical and electronic component impairments, which can significantly reduce the secret key rate. In this research, we address this challenge by modeling a CV-QKD system to simulate the impact of individual impairments on the secret key rate. The results show that laser frequency drifts and small imperfections in electro-optical devices such as the beam splitter and the balanced detector have a negative impact on the secret key rate. This provides valuable insights into strategies for optimizing the performance of CV-QKD systems and overcome limitations caused by component impairments. By offering a method to analyze them, the study enables the establishment of quality standards for the components of CV-QKD systems, driving the development of advanced technologies for secure communication in the future. |
| first_indexed | 2024-03-13T07:57:21Z |
| format | Article |
| id | doaj.art-afadfea933a94e5eacfacff958550194 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-13T07:57:21Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-afadfea933a94e5eacfacff9585501942023-06-02T04:23:35ZengElsevierHeliyon2405-84402023-06-0196e16670Effects of experimental impairments on the security of continuous-variable quantum key distributionAndres Ruiz-Chamorro0Daniel Cano1Aida Garcia-Callejo2Veronica Fernandez3Corresponding author.; Spanish National Research Council (CSIC), Institute of Physical and Information Technologies (ITEFI), Serrano 144, 28006 Madrid, SpainSpanish National Research Council (CSIC), Institute of Physical and Information Technologies (ITEFI), Serrano 144, 28006 Madrid, SpainSpanish National Research Council (CSIC), Institute of Physical and Information Technologies (ITEFI), Serrano 144, 28006 Madrid, SpainSpanish National Research Council (CSIC), Institute of Physical and Information Technologies (ITEFI), Serrano 144, 28006 Madrid, SpainQuantum Key Distribution (QKD) is a cutting-edge communication method that enables secure communication between two parties. Continuous-variable QKD (CV-QKD) is a promising approach to QKD that has several advantages over traditional discrete-variable systems. Despite its potential, CV-QKD systems are highly sensitive to optical and electronic component impairments, which can significantly reduce the secret key rate. In this research, we address this challenge by modeling a CV-QKD system to simulate the impact of individual impairments on the secret key rate. The results show that laser frequency drifts and small imperfections in electro-optical devices such as the beam splitter and the balanced detector have a negative impact on the secret key rate. This provides valuable insights into strategies for optimizing the performance of CV-QKD systems and overcome limitations caused by component impairments. By offering a method to analyze them, the study enables the establishment of quality standards for the components of CV-QKD systems, driving the development of advanced technologies for secure communication in the future.http://www.sciencedirect.com/science/article/pii/S240584402303877XQuantum Key DistributionContinuous variableCV-QKDImpairmentsSimulationsSecret key rate |
| spellingShingle | Andres Ruiz-Chamorro Daniel Cano Aida Garcia-Callejo Veronica Fernandez Effects of experimental impairments on the security of continuous-variable quantum key distribution Heliyon Quantum Key Distribution Continuous variable CV-QKD Impairments Simulations Secret key rate |
| title | Effects of experimental impairments on the security of continuous-variable quantum key distribution |
| title_full | Effects of experimental impairments on the security of continuous-variable quantum key distribution |
| title_fullStr | Effects of experimental impairments on the security of continuous-variable quantum key distribution |
| title_full_unstemmed | Effects of experimental impairments on the security of continuous-variable quantum key distribution |
| title_short | Effects of experimental impairments on the security of continuous-variable quantum key distribution |
| title_sort | effects of experimental impairments on the security of continuous variable quantum key distribution |
| topic | Quantum Key Distribution Continuous variable CV-QKD Impairments Simulations Secret key rate |
| url | http://www.sciencedirect.com/science/article/pii/S240584402303877X |
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