Performance analysis for OFDM-based multi-carrier continuous-variable quantum key distribution with an arbitrary modulation protocol
Multi-carrier continuous-variable quantum key distribution (CV-QKD) is considered to be a promising way to boost the secret key rate (SKR) over the existing single-carrier CV-QKD scheme. However, the extra excess noise induced in the imperfect multi-carrier quantum state preparation process of N subcarriers will limit the performance of the system. Here, a systematic modulation noise model is proposed for the multi-carrier CV-QKD based on the orthogonal frequency division multiplexing (OFDM). Subsequently, the performance of multi-carrier CV-QKD with arbitrary modulation protocol (e.g. QPSK, 256QAM and Gaussian modulation protocol) can be quantitatively evaluated by combining the security analysis method of the single-carrier CV-QKD. Under practical system parameters, the simulation results show that the SKR of the multi-carrier CV-QKD can still be significantly improved by increasing the carrier number N even with imperfect practical modulations. Specifically, the total SKR of multi-carrier CV-QKD can be optimized by carefully choosing N. The proposed model provides a feasible theoretical framework for the future multi-carrier CV-QKD experimental implementation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:31 |
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| Enthalten in: |
Optics express - 31(2023), 4 vom: 13. Feb., Seite 5577-5592 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Heng [VerfasserIn] |
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| Links: |
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| Themen: |
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| Anmerkungen: |
Date Completed 24.02.2023 Date Revised 24.02.2023 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1364/OE.482136 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM353300675 |
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| 245 | 1 | 0 | |a Performance analysis for OFDM-based multi-carrier continuous-variable quantum key distribution with an arbitrary modulation protocol |
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| 500 | |a Date Completed 24.02.2023 | ||
| 500 | |a Date Revised 24.02.2023 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Multi-carrier continuous-variable quantum key distribution (CV-QKD) is considered to be a promising way to boost the secret key rate (SKR) over the existing single-carrier CV-QKD scheme. However, the extra excess noise induced in the imperfect multi-carrier quantum state preparation process of N subcarriers will limit the performance of the system. Here, a systematic modulation noise model is proposed for the multi-carrier CV-QKD based on the orthogonal frequency division multiplexing (OFDM). Subsequently, the performance of multi-carrier CV-QKD with arbitrary modulation protocol (e.g. QPSK, 256QAM and Gaussian modulation protocol) can be quantitatively evaluated by combining the security analysis method of the single-carrier CV-QKD. Under practical system parameters, the simulation results show that the SKR of the multi-carrier CV-QKD can still be significantly improved by increasing the carrier number N even with imperfect practical modulations. Specifically, the total SKR of multi-carrier CV-QKD can be optimized by carefully choosing N. The proposed model provides a feasible theoretical framework for the future multi-carrier CV-QKD experimental implementation | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Pan, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Shao, Yun |e verfasserin |4 aut | |
| 700 | 1 | |a Pi, Yaodi |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Ting |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Tao |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Jinlu |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Jie |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Bingjie |e verfasserin |4 aut | |
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