Research progress in quantum key distribution

doi:10.1088/1674-1056/acfd16

Abstract Quantum key distribution (QKD) is a sophisticated method for securing information by leveraging the principles of quantum mechanics. Its objective is to establish a confidential key between authorized partners who are connected via both a quantum channel and a classical authentication channel. This paper presents a comprehensive overview of QKD protocols, chip-based QKD systems, quantum light sources, quantum detectors, fiber-based QKD networks, space-based QKD systems, as well as the applications and prospects of QKD technology.

Keywords: quantum key distribution (QKD) sources detectors chip

Received: 28 June 2023
Revised: 04 September 2023
Accepted manuscript online: 26 September 2023

PACS:	42.82.Et	(Waveguides, couplers, and arrays)
	03.67.Dd	(Quantum cryptography and communication security)
	42.82.Bq	(Design and performance testing of integrated-optical systems)
	03.67.Hk	(Quantum communication)

Fund: Project supported by the Innovation Program for Quantum Science and Technology (Grant No.2021ZD0300701), the National Key Research and Development Program of China (Grant No.2018YFA0306403), and the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No.XDB43000000).

Corresponding Authors: Jun-Ming An
E-mail: junming@semi.ac.cn

Cite this article:

Chun-Xue Zhang(张春雪), Dan Wu(吴丹), Peng-Wei Cui(崔鹏伟), Jun-Chi Ma(马俊驰),Yue Wang(王玥), and Jun-Ming An(安俊明) Research progress in quantum key distribution 2023 Chin. Phys. B 32 124207

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