Phase-matching quantum key distribution based on pulse-position modulation

Yu, Bingjie; Mao, Qianping; Zhu, Xiaomei; Yu, Yang; Zhao, Shengmei

doi:10.1016/j.physleta.2021.127702

Cited by 4 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[22] In 2021, Wang et al further extended the transmission distance to 833.8 km in fiber channel by optimizing the source, channel and detectors. [23] Phase-matching QKD(PM-QKD), [14] which employs phase encoding and phase post-compensation technique, [24] is one of the most cutting-edge protocols in the TF-QKD variants. [25] It is immune to all possible measurement terminal attacks and offers a number of advantages, [26] including good stability, strong anti-interference capability, and low bit error rate.…”

Section: Introductionmentioning

confidence: 99%

Improved statistical fluctuation analysis for two decoy-states phase-matching quantum key distribution

Zhou

et al. 2023

Chinese Phys. B

View full text Add to dashboard Cite

Phase matching quantum key distribution is a promising scheme for remote quantum key distribution, breaking through the traditional linear key-rate bound. In practical applications, finite data size can cause significant system performance deterioration when data size is below 1010. In this paper, an improved statistical fluctuation analysis method is applied for the first time to two decoy-states phase matching quantum key distribution, offering new insights and potential solutions for improving the key generation rate and the maximum transmission distance while maintaining security. Moreover, we also compares the impacts of the proposed improved statistical fluctuation analysis method to those of the Gaussian approximation and Chernoff-Hoeffding boundary methods on system performance. The simulation results show that the proposed scheme significantly improves key generation rate and maximum transmission distance compared to the Chernoff-Hoeffding approach, and approaches the results obtained when the Gaussian approximation is employed. At the same time, the proposed scheme retains the same security level as the Chernoff-Hoeffding method, and is even more secure than the Gaussian approximation.

show abstract

Section: Introductionmentioning

confidence: 99%

Improved statistical fluctuation analysis for two decoy-states phase-matching quantum key distribution

Zhou

et al. 2023

Chinese Phys. B

View full text Add to dashboard Cite

show abstract

“…In 2018, the revolutionary twin-field quantum key distribution (TF-QKD) protocol proposed by Lucanarini et al [14] was able to effectively overcome the PLOB bound, and its experimental secure transmission distance even exceeded 500km. Then, many variant QKD protocols and further studies [15][16][17][18][19][20][21][22] followed to develop the performance of TF-QKD. As the protocol with the longest transmission distance in current QKD experiments, sendingor-not-sending TF-QKD (SNS-QKD) [15,[23][24][25][26][27][28][29][30] not only fixes the security vulnerability of TF-QKD, but also tolerates large misalignment errors.…”

Section: Introductionmentioning

confidence: 99%

Sending-or-Not-Sending Twin-Field Quantum Key Distribution with a Passive Decoy-State Method

Xue

Shen

Zhao

et al. 2022

Entropy

Self Cite

View full text Add to dashboard Cite

Twin-field quantum key distribution (TF-QKD) has attracted considerable attention because it can exceed the basic rate-distance limit without quantum repeaters. Its variant protocol, sending or not-sending quantum key distribution (SNS-QKD), not only fixes the security vulnerability of TF-QKD, but also can tolerate large misalignment errors. However, the current SNS-QKD protocol is based on the active decoy-state method, which may lead to side channel information leakage when multiple light intensities are modulated in practice. In this work, we propose a passive decoy-state SNS-QKD protocol to further enhance the security of SNS-QKD. Numerical simulation results show that the protocol not only improves the security in source, but also retains the advantages of tolerating large misalignment errors. Therefore, it may provide further guidance for the practical application of SNS-QKD.

show abstract

Mode-pairing quantum key distribution based on pulse-position modulation

Zhou

Shi

et al. 2023

Optik

View full text Add to dashboard Cite

Phase-matching quantum key distribution based on pulse-position modulation

Cited by 4 publications

References 32 publications

Improved statistical fluctuation analysis for two decoy-states phase-matching quantum key distribution

Improved statistical fluctuation analysis for two decoy-states phase-matching quantum key distribution

Sending-or-Not-Sending Twin-Field Quantum Key Distribution with a Passive Decoy-State Method

Mode-pairing quantum key distribution based on pulse-position modulation

Contact Info

Product

Resources

About