摘要
为解决全球范围内任意两个用户进行量子通信的路径选择问题,根据蒲公英球形量子卫星网络的结构特性,提出了一种两端纠缠交换的量子路由方案。该方案同时从源节点和目的节点向中间节点建立纠缠,并通过无线信道传送Bell测量结果,从而完成量子态信息从源节点到目的节点的传输过程。仿真结果表明:随着交换卫星数目的增多,两端纠缠交换路由方案可以有效节约量子态信息的传输时间;随着交换卫星节点的增加,采用两端纠缠交换路由方案的量子信道建立速率与逐跳纠缠交换方案的量子信道建立速率相比具有显著优势,其路由传输开销小于逐跳纠缠交换方案。由此可见,两端纠缠交换量子路由方案具有信息传输时间短、量子信道建立速率高、无线传输开销小等优势。
To address the path selection for quantum communication between any two users around the world,according to the structural characteristics of the dandelion spherical quantum satellite network,a quantum routing scheme with two-end entanglement exchange is proposed.In this scheme,entanglement is established from the source node and the destination node to the intermediate node,and the Bell measurement results are transmitted through the wireless channel,so as to complete the transmission process of quantum state information from the source node to the destination node.Simulation results show that:with the increase of the number of switching satellites,the two-end entanglement exchange routing scheme can effectively reduce the transmission time of quantum information;with the increase of the number of switching satellite nodes,the quantum channel establishment rate of the two-end entanglement exchange routing scheme is significantly superior to that of the hop by hop entanglement exchange scheme,and its routing transmission cost is less than that of the hop by hop entanglement exchange scheme.It can be seen that the quantum routing scheme of the two-end entanglement exchange has the advantages of short information transmission time,high quantum channel establishment rate,and small wireless transmission overhead.
作者
聂敏
郭建伟
卫容宇
杨光
张美玲
孙爱晶
裴昌幸
Nie Min;Guo Jianwei;Wei Rongyu;Yang Guang;Zhang Meiling;Sun Aijing;Pei Changxing(School of Communication and Information Engineering,Xi'an University of Posts and Telecommunications,Xi'an,Shaanxi 710121,China;School of Electronics and Information,Northwestern Polytechnical University,Xi'an,Shaanxi 710072,China;State Key Laboratory of Integrated Service Networks,Xidian University,Xi'an,Shaanxi 710071,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2021年第3期125-134,共10页
Laser & Optoelectronics Progress
基金
国家自然科学基金(61971348,61201194)
陕西省国际科技合作与交流计划(2015KW-013)
陕西省教育厅科研计划(16JK1711)。
关键词
光通信
全球量子卫星网络
两端纠缠交换
路由发现
区域查询
optical communications
global quantum satellite network
two-end entanglement exchange
route discovery
area query
作者简介
郭建伟,E-mail:15539979017@163.com。
