一种基于光开关和量子收发器的多用户密钥分配网络

Multi-user Quantum Key Distribution Network Based on Optical Switch and Quantum Transceiver

通过设计光开关和量子收发器,提出了一种基于光开关和量子收发器的多用户量子密钥分配网络(QKDN)方案。该方案解决了无光源器件QKDN的扩展性差、通信模式单一、线路成本高等问题,且无需量子纠缠QKDN必备的纠缠资源和对应存储器。通过选取线路成本、量子资源、通信模式、可扩展、鲁棒性等五种指标,与现有几种典型的量子密钥分配网络方案相比,该方案具有较大优势。

By designing optical switch and quantum transceiver,a multi-user quantum key distribution network(QKDN)scheme based on optical switches and quantum transceivers is proposed.The scheme solves the problems of the passive optical QKDN,such as poor scalability,single communication mode,high line cost and so on,besides the scheme does not need the entangled resources and corresponding memory which are essential for quantum entanglement QKDN.By selecting five indicators line cost,quantum resources,communication mode,scalability,robustness,this scheme has a comparative advantage compared with several typical quantum key distribution network schemes.