基于保真度的量子信令纠缠交换最佳交换速率

J4 ›› 2015, Vol. 32 ›› Issue (2): 170-177.

基于保真度的量子信令纠缠交换最佳交换速率

徐华成¹,聂敏²,杨光³

1. 西安邮电大学通信与信息工程学院，陕西西安 710061；
2. 西北工业大学电子信息学院，陕西西安 710072

收稿日期:2014-05-22 修回日期:2014-07-11 出版日期:2015-03-28 发布日期:2015-03-17
通讯作者: 聂敏（1964—），博士后，教授，主要从事量子通信方面的研究。 E-mail:niemin@xupt.edu.cn
作者简介:徐华成（1988—）研究生，主要从事量子通信方面的研究。E-mail：huachengxuss@163.com
基金资助:
国家自然科学基金项目（61172071）、陕西省教育厅自然科学研究项目（2011JK1017）、陕西省自然科学基础研究计划项目(2014JQ8318 )

An optimal exchange rate for quantum signaling entanglement swapping based on the fidelity

XU Hua-cheng1 , NIE Min1 , YANG Guang1,2

1.School of Communication and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710061, China；
2. School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710072, China

Received:2014-05-22 Revised:2014-07-11 Published:2015-03-28 Online:2015-03-17

摘要/Abstract

摘要：

为了解决量子信令交换的最佳交换速率问题，提出了基于保真度的量子信令纠缠交换最佳交换速率算法。根据量子信令纠缠交换方案，分析了由量子混合态组成的信令保真度。针对单输入单输出系统（SISO）和多输入多输出系统（MIMO），讨论了影响量子信令交换速率的各种因素，计算得出最佳交换速率。仿真结果表明，在保真度为97%时，最佳交换速率为100qubit/s，该指标完全能够满足量子通信对信令交换的要求，对于构建未来量子通信系统有着重要的技术支撑作用。

关键词: 量子光学, 量子信令网, 纠缠交换, 保真度, 最佳交换速率

Abstract:

In order to solve the problem of quantum signaling exchange rate for the optimal, a quantum signaling optimal exchange rate algorithm with entanglement swapping was proposed. According to the entanglement exchange scheme with quantum signaling, a quantum signaling fidelity by the composition of mixed quantum states was analyzed. Discussing the impact of quantum signaling exchange rate factors in single-input single-output system (SISO) and multiple-input multiple-output system (MIMO), and an optimal exchange rate was given by calculating. Simulation results shows that the optimal exchange rate is 100qubit/s under the condition that the fidelity is 97% , the index can satisfy the signaling exchange requirements with quantum communication. It is important supporting role in building the future quantum communication system.

Key words: quantum optics, quantum signaling network, entanglement swapping, fidelity, optimal exchange rate

徐华成聂敏杨光. 基于保真度的量子信令纠缠交换最佳交换速率[J]. J4, 2015, 32(2): 170-177.

XU Hua-cheng1 , NIE Min1 , YANG Guang1,2. An optimal exchange rate for quantum signaling entanglement swapping based on the fidelity[J]. J4, 2015, 32(2): 170-177.

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