Open-destination measurement-device-independent quantum key distribution network

• URL: http://arxiv.org/abs/2009.13439v2
• Date: Tue, 29 Sep 2020 01:54:48 GMT
• Title: Open-destination measurement-device-independent quantum key distribution network
• Authors: Wen-Fei Cao, Yi-Zheng Zhen, Yu-Lin Zheng, Shuai Zhao, Feihu Xu, Li Li, Zeng-Bing Chen, Nai-Le Liu and Kai Chen
• Abstract summary: Quantum key distribution (QKD) networks hold promise for sharing secure randomness over multi-partities. Here, we propose an open-destination measurement-device-independent QKD network. The scheme enjoys security against untrusted relays and all detector side-channel attacks.
• Score: 10.480419551094071
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum key distribution (QKD) networks hold promise for sharing secure randomness over multi-partities. Most existing QKD network schemes and demonstrations are based on trusted relays or limited to point-to-point scenario. Here, we propose a flexible and extensible scheme named as open-destination measurement-device-independent QKD network. The scheme enjoys security against untrusted relays and all detector side-channel attacks. Particularly, any users can accomplish key distribution under assistance of others in the network. As an illustration, we show in detail a four-user network where two users establish secure communication and present realistic simulations by taking into account imperfections of both sources and detectors.

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