一种新的量子纠缠无线中继模型及RQCP协议研究

A Novel Quantum Entanglement Wireless Relay Scheme and RQCP Protocol

无线量子通信是未来量子通信系统的重要组成部分,而量子纠缠中继则是无线量子通信的关键技术之一。然而,由于在无线信道上存在各种干扰和噪声,使得量子纠缠态远程传送的实现正面临很大的困难,为此,本文提出了基于移动终端和移动基站的两种量子纠缠中继方案,建立了量子无线通信网络的分层结构,给出了量子纠缠态无线传输的路由协议(RQCP)。分析结果表明,即使在量子通信终端之间没有共享EPR纠缠对的情况下,本模型同样可以完成量子态的无线传输,并且其传输时延与链路的无线跳数无关。因此,从传输时延的观点来看,该中继方案和协议是最优的。

Wireless quantum communication is one of the most important parts in the future quantum communication. Quantum entanglement relay is one of the key technologies in wireless quantum communication systems. However, there are so many kinds of interference and noise in wireless channel that it is very hard to realize the relay of the quantum states. To solve the problem, the two quanta relay schemes based on mobile terminals and base stations are presented firstly. The layered structure of wireless quantum communication and the quantum states routing protocol （RQCP） in wireless transmission are presented also. Theory analysis results show that the scheme above can transmit quanta states although no EPR pairs shared by source and objective nodes, and the time delay in transmission has nothing to do with the number of wireless hopping. It proved that the model and scheme are optimal.