Experimental demonstration of fully passive quantum key distribution

Autor:	Lu, Feng-Yu, Wang, Ze-Hao, Zapatero, Víctor, Chen, Jia-Lin, Wang, Shuang, Yin, Zhen-Qiang, Curty, Marcos, He, De-Yong, Wang, Rong, Chen, Wei, Fan-Yuan, Guan-Jie, Guo, Guang-Can, Han, Zheng-Fu
Rok vydání:	2023
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	The passive approach to quantum key distribution (QKD) consists of removing all active modulation from the users' devices, a highly desirable countermeasure to get rid of modulator side-channels. Nevertheless, active modulation has not been completely removed in QKD systems so far, due to both theoretical and practical limitations. In this work, we present a fully passive time-bin encoding QKD system and report on the successful implementation of a modulator-free QKD link. According to the latest theoretical analysis, our prototype is capable of delivering competitive secret key rates in the finite key regime. Comment: 13 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2304.11655 Zobrazit plný text záznamu View this record from Arxiv