两模连续变量的量子隐形传态

J4 ›› 2014, Vol. 31 ›› Issue (3): 312-317.

两模连续变量的量子隐形传态

闫伟，张英杰

山东省激光偏光与信息技术重点实验室，曲阜师范大学物理系，曲阜 273165

出版日期:2014-05-28 发布日期:2014-05-27
通讯作者: 闫伟（1960－）山东德州人，博士，副教授，主要从事量子光学量子信息方面的研究。 E-mail:yanweiqf@126.com
基金资助:
Supported by National Natural Science Foundation of China under Grant Nos. 11304179, 11247240, the Specialized Research Fund for the Doctoral Program of Higher Education under Grant No. 20123705120002, the Provincial Natural Science Foundation of Shandong under Grant No. ZR2012FQ024, and the Scientific Research Foundation of Qufu Normal University

Teleportation of two-mode squeezed vacuum states

YAN Wei，ZHANG Ying-jie ?

Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Department of Physics, Qufu Normal University, Qufu, 273165, China

Published:2014-05-28 Online:2014-05-27

摘要/Abstract

摘要： 利用两个双模压缩真空态作为量子通道，实现了两模连续变量的量子隐形传态。计算了两模压缩真空态隐形传态的平均保真度和概率密度函数.结果表明：增大传输态的压缩参量将导致保真度的损失；测量结果的概率密度函数是两个二元正态概率密度函数的乘积，当平均保真度增加时，获得大的测量值的概率也随着增加。

关键词: 量子光学, 量子隐形传态, 压缩真空态, 连续变量

Abstract: The teleportation of two-mode continuous variables is performed by using two two-mode squeezed vacuum states which are served as quantum channel. The average fidelity and the probability density are calculated for teleportation of a two-mode squeezed vacuum state. The results indicate that increased squeezing of teleported state will lead to a loss of fidelity. The probability density of measuring result consists of the product of two bivariate normal density functions, and it shows that when the average fidelity goes up, the probability of obtaining large measurement value also increases.

Key words: quantum optics, quantum teleportation, squeezed vacuum states, continuous variables

中图分类号:

O413

闫伟，张英杰. 两模连续变量的量子隐形传态[J]. J4, 2014, 31(3): 312-317.

YAN Wei，ZHANG Ying-jie ?. Teleportation of two-mode squeezed vacuum states[J]. J4, 2014, 31(3): 312-317.

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