Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels

doi:10.1088/1674-1056/23/9/090307

›› 2014, Vol. 23 ›› Issue (9): 90307-090307.doi: 10.1088/1674-1056/23/9/090307

Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels

常利伟^{a b}, 郑世慧^{a b}, 谷利泽^{a b}, 肖达^{a b}, 杨义先^{a b}

a Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China;
b National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2013-11-21 修回日期:2014-03-10 出版日期:2014-09-15 发布日期:2014-09-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61370194 and 61202082), the Fundamental Research Funds for the Central Universities of China (Grant Nos. BUPT2012RC0219), and the Foundation of Science and Technology of Huawei of China.

Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels

Chang Li-Wei (常利伟)^{a b}, Zheng Shi-Hui (郑世慧)^{a b}, Gu Li-Ze (谷利泽)^{a b}, Xiao Da (肖达)^{a b}, Yang Yi-Xian (杨义先)^{a b}

a Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China;
b National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2013-11-21 Revised:2014-03-10 Online:2014-09-15 Published:2014-09-15
Contact: Chang Li-Wei E-mail:changliwei002@163.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61370194 and 61202082), the Fundamental Research Funds for the Central Universities of China (Grant Nos. BUPT2012RC0219), and the Foundation of Science and Technology of Huawei of China.

摘要/Abstract

摘要： We firstly present a novel scheme for deterministic joint remote state preparation of an arbitrary five-qubit Brown state using four Greenberg-Horme-Zeilinger (GHZ) entangled states as the quantum channel. The success probability of this scheme is up to 1, which is superior to the existing ones. Moreover, the scheme is extended to the generalized case where three-qubit and four-qubit non-maximally entangled states are taken as the quantum channel. We simultaneously employ two common methods to reconstruct the desired state. By comparing these two methods, we draw a conclusion that the first is superior to the second-optimal positive operator-valued measure only taking into account the number of auxiliary particles and the success probability.

关键词: joint remote state preparation, Brown state, optimal positive operator-valued measure

Abstract: We firstly present a novel scheme for deterministic joint remote state preparation of an arbitrary five-qubit Brown state using four Greenberg-Horme-Zeilinger (GHZ) entangled states as the quantum channel. The success probability of this scheme is up to 1, which is superior to the existing ones. Moreover, the scheme is extended to the generalized case where three-qubit and four-qubit non-maximally entangled states are taken as the quantum channel. We simultaneously employ two common methods to reconstruct the desired state. By comparing these two methods, we draw a conclusion that the first is superior to the second-optimal positive operator-valued measure only taking into account the number of auxiliary particles and the success probability.

Key words: joint remote state preparation, Brown state, optimal positive operator-valued measure

中图分类号: (Quantum information)

03.67.-a

03.65.Ud (Entanglement and quantum nonlocality) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)

常利伟, 郑世慧, 谷利泽, 肖达, 杨义先. Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels[J]. , 2014, 23(9): 90307-090307.

Chang Li-Wei (常利伟), Zheng Shi-Hui (郑世慧), Gu Li-Ze (谷利泽), Xiao Da (肖达), Yang Yi-Xian (杨义先). Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels[J]. Chin. Phys. B, 2014, 23(9): 90307-090307.

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Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels

Joint remote preparation of an arbitrary five-qubit Brown state via non-maximally entangled channels

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