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本文提出了量子信令交换机的模型,该交换机由经典信息控制模块、交换控制模块和量子交换模块三部分组成.经典控制模块负责将纠缠初态信息传送给纠缠测量及交换单元并更新路由信息.交换控制模块实现通路选择,为纠缠对的分发提供通路.量子交换模块制备纠缠对,进行Bell态的测量,完成纠缠交换.量子信令交换机可以实现多用户间的信令传输及局域网通信.通过对交换机的性能分析与仿真,结果表明该交换机结构简单、安全保密、便于扩展、时延小,对于构建量子通信网有很好的支撑作用.
In this paper, a model of quantum signaling switch is proposed, which consists of classical information control module, exchange control module and quantum switch module.The classical control module is responsible for sending the entangled initial state information to the entanglement measurement and exchange unit and updating the routing information. The exchange control module realizes the path selection and provides the path for the distribution of the entangled pair.Quantum exchange module prepares the entangled pair and performs the Bell state measurement to complete the entanglement exchange.The quantum signaling switch can realize the signaling transmission and the local area network communication between multiple users The performance analysis and simulation of the switch show that the switch has the advantages of simple structure, security and confidentiality, easy expansion and small delay, and is good for constructing the quantum communication network.