Tight finite-key analysis for mode-pairing quantum key distribution

Autor:	Wang, Ze-Hao, Yin, Zhen-Qiang, Wang, Shuang, Wang, Rong, Lu, Feng-Yu, Chen, Wei, He, De-Yong, Guo, Guang-Can, Han, Zheng-Fu
Rok vydání:	2023
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	Mode-pairing quantum key distribution (MP-QKD) is a potential protocol that is not only immune to all possible detector side channel attacks, but also breaks the repeaterless rate-transmittance bound without needing global phase locking. Here we analyze the finite-key effect for the MP-QKD protocol with rigorous security proof against general attacks. Moreover, we propose a six-state MP-QKD protocol and analyze its finite-key effect. The results show that the original protocol can break the repeaterless rate-transmittance bound with a typical finite number of pulses in practice. And our six-state protocol can improve the secret key rate significantly in long distance cases. Comment: 28 pages, 5 Figures, 4 Tables
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2302.13481 Zobrazit plný text záznamu View this record from Arxiv