电讯技术2016，Vol.56Issue(3)：233-240,8.DOI:10.3969/j.issn.1001-893x.2016.03.001
一种基于纠缠交换的远程量子链路建立策略
A Strategy of Establishing Remote Quantum Link Based on Entanglement Swapping
摘要
Abstract
A remote quantum link establishment strategy which uses entanglement swapping as the core tech-nology is proposed. The model of quantum link based on state matrix is established and its entanglement swapping implementation and its matrix representation are analyzed. The process of entanglement swapping and entanglement purification under control of the matrix is also discussed. With classical auxiliary informa-tion based on automatic repeat request ( ARQ ) protocol, the quantitative relationship between link delay ( throughput) and node number,frame error rate,average distance,operation success rate is calculated. Sim-ulation results show that the performance of links in the same state interval varies consistently and gradually while links in different ranges behave very differently. Setting average distance to be 1 km,frame error rate to be 0,entanglement fidelity to be 0. 98,when the node number is 32,33,34,the time delay is 1. 077 0 ms,1. 090 3 ms and 1. 669 0 ms,the throughput is 0. 928 5 kb/s,0. 917 2 kb/s and 0. 599 2 kb/s,respectively.关键词
量子通信/量子链路/纠缠交换/纠缠纯化/链路时延/链路吞吐量Key words
quantum communication/quantum link/entanglement swapping/entanglement purification/link time delay/link throughput分类
电子信息工程引用本文复制引用
许敏,聂敏,杨光,裴昌幸..一种基于纠缠交换的远程量子链路建立策略[J].电讯技术,2016,56(3):233-240,8.基金项目
国家自然科学基金资助项目(61172071,61201194) （61172071,61201194）
陕西省自然科学基础研究计划(2014JQ8318) （2014JQ8318）
陕西省国际科技合作与交流计划(2015KW-013) （2015KW-013）
