多方控制量子通信协议

TN911; 为了满足远距离多节点量子网络的需求,分别利用最大纠缠信道和部分纠缠信道构造了2个多方控制量子通信协议.最大纠缠信道时,利用投影测量实现多方控制四粒子x-态远程制备;部分纠缠信道时,利用联合酉操作和最优POVM实现多方控制四粒子x-态远程制备.理论推导表明,第一个协议的效率达到100％且优于其他协议,第二协议的效率被有效提高且2种测量方法的构造方法可被用于同类协议....

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Bibliographic Details
Published in通信学报 Vol. 36; no. 6; pp. 139 - 148
Main Authors 常利伟, 郑世慧, 谷利泽, 雷敏, 杨义先
Format Journal Article
LanguageChinese
Published 北京邮电大学信息安全中心,北京100876 2015
北京邮电大学灾备技术国家工程实验室,北京100876
Subjects
four-qubit x-state
多方控制协议
联合酉操作
joint unitary operation
四粒子x-态
最优POVM测量
multiparty controlled protocol
optimal positive operator-valued measure
Online AccessGet full text
ISSN1000-436X
DOI10.11959/j.issn.1000-436x.2015221

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Abstract TN911; 为了满足远距离多节点量子网络的需求,分别利用最大纠缠信道和部分纠缠信道构造了2个多方控制量子通信协议.最大纠缠信道时,利用投影测量实现多方控制四粒子x-态远程制备;部分纠缠信道时,利用联合酉操作和最优POVM实现多方控制四粒子x-态远程制备.理论推导表明,第一个协议的效率达到100％且优于其他协议,第二协议的效率被有效提高且2种测量方法的构造方法可被用于同类协议.
AbstractList TN911; 为了满足远距离多节点量子网络的需求,分别利用最大纠缠信道和部分纠缠信道构造了2个多方控制量子通信协议.最大纠缠信道时,利用投影测量实现多方控制四粒子x-态远程制备;部分纠缠信道时,利用联合酉操作和最优POVM实现多方控制四粒子x-态远程制备.理论推导表明,第一个协议的效率达到100％且优于其他协议,第二协议的效率被有效提高且2种测量方法的构造方法可被用于同类协议.
Author 雷敏
杨义先
谷利泽
郑世慧
常利伟
AuthorAffiliation 北京邮电大学信息安全中心,北京100876;北京邮电大学灾备技术国家工程实验室,北京100876
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ZHENG Shi-hui
GU Li-ze
LEI Min
CHANG Li-wei
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Keywords four-qubit x-state
多方控制协议
联合酉操作
joint unitary operation
四粒子x-态
最优POVM测量
multiparty controlled protocol
optimal positive operator-valued measure
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Publisher 北京邮电大学信息安全中心,北京100876
北京邮电大学灾备技术国家工程实验室,北京100876
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