四节点量子通信网络中基于纠缠的量子信道与 DWDM 经典信道共存于空心芯光纤
量子物理
2025-11-21 v1
摘要
我们在 11.5km 空心芯嵌套抗共振无节点光纤上成功演示了四用户量子网络中三条纠缠基量子信道与载波级经典光信道的共存。实现了四个经典信道同时传输 800Gbps，同时三个量子信道全部工作于 C 波段，分离度为 1.2nm，综合共存功率为 -3dBm。我们在四节点全网量子网络中建立了量子密钥分发，Bell 态保真度达到 90.0±0.8%。该网络中所有链路的密钥率在实验时间累计 55 小时后保持被动保存。
引用
@article{arxiv.2508.00072,
title = {Coexistence of Entanglement-based Quantum Channels with DWDM Classical Channels over Hollow Core Fibre in a Four Node Quantum Communication Network},
author = {Marcus J Clark and Obada Alia and Sima Bahrani and Gregory T Jasion and Hesham Sakr and Periklis Petropoulos and Francesco Poletti and George T Kanellos and John Rarity and Reza Nejabati and Siddarth K Joshi and Rui Wang and Dimitra Simeonidou},
journal= {arXiv preprint arXiv:2508.00072},
year = {2025}
}
备注
14 pages, 6 figures, 4 tables