Changlan Zhao, Tianyi Wang. Security Analysis of Phase Encoding Continuous-Variable Quantum Key Distribution Based on K-Nearest Neighbor[J]. Laser & Optoelectronics Progress, 2023, 60(19): 1927002
- Laser & Optoelectronics Progress
- Vol. 60, Issue 19, 1927002 (2023)
Fig. 1. Distribution of modulated coherent states in phase space. (a) 4PSK; (b) 8PSK
Fig. 2. Modulation representation of KNN classification algorithm in phase space. (a) QPSK; (b) 8PSK
Fig. 3. Phase coded CVQKD based on KNN
Fig. 4. Performance of KNN algorithm under different K values in 4PSK and 8PSK modulated coherent states
Fig. 5. Performance of KNN algorithm under different modulation variances
Fig. 6. Performance of KNN algorithm at different transmission distances
Fig. 7. Performance of KNN algorithm under different excess noises
Fig. 8. Performance comparison of different protocols
Fig. 9. Security key rates for protocols with different modulation variances
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