2种量子测量方案对非最大纠缠相干态隐形传态平均保真度的影响  

The Different Average Fidelity between Two Quantum Measurement Schemes by Using Non-Maximally Entangled as Channel in Teleportation

作　　者：陈怡翔 叶志清[1] 郭一言 

机构地区：[1]江西师范大学物理与通信电子学院,江西省光电子与通信重点实验室,江西南昌330022

出　　处：《江西师范大学学报（自然科学版）》2016年第5期469-472,共4页Journal of Jiangxi Normal University(Natural Science Edition)

基　　金：国家自然科学基金(61368001)资助项目

摘　　要：在纠缠相干态的隐形传态过程中,使用双模光子数测量和奇偶态测量2种粒子数测量方案,得到的平均保真度存在较大差异.据此对使用非最大纠缠相干态作为量子信道时,2种测量方法得到的平均保真度进行了对比.结果显示:相较于双光子数测量,用奇偶态粒子数测量方案时,隐形传态的平均保重度有了较大提高.In the teleportation of entangled coherent states, by using two mode photon number measurement or evenodd state measurement, the average fidelity is quite a difference. The average fidelity of two methods is compared innon-maximum entangled coherent states as quantum channel. Results show that the average fidelity of the teleportation is greatly improved when the number of odd and odd particles is measured with the double photon numbermeasurement.

关 键 词：纠缠相干态 量子测量 保真度 

分 类 号：TN918[电子电信—通信与信息系统]