基于GHZ态纠缠交换的量子秘密共享

doi:10.13190/jbupt.200701.44.tongx

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (1): 44-48.doi: 10.13190/jbupt.200701.44.tongx

基于GHZ态纠缠交换的量子秘密共享

佟鑫1, 温巧燕1, 朱甫臣2

1. 北京邮电大学理学院, 北京100876; 2. 现代通信国家重点实验室, 成都610041

收稿日期:2005-12-27 修回日期:1900-01-01 出版日期:2007-03-30 发布日期:2007-03-30
通讯作者: 佟鑫

Quantum Secret Sharing Based on GHZ States Entanglement Swapping

TONG Xin1, WEN Qiao-yan1, ZHU Fu-chen2

1. School of Science , Beijing University of Posts and Telecommunications , Beijing 100876 , China ;
2. National Laboratory for Modern Communications , Chengdu 610041 , China

Received:2005-12-27 Revised:1900-01-01 Online:2007-03-30 Published:2007-03-30
Contact: TONG Xin

摘要/Abstract

摘要：

提出了一个基于GHZ态纠缠交换的新的量子秘密共享方案．该方案中，消息发送者Alice通过对GHZ态纠缠交换和局部幺正操作使得接收者Bob和Charlie能直接共享其秘密消息．所提出的方案是高效的，除去用于窃听检测的粒子，其余粒子全部用于消息传输，2个GHZ态纠缠交换可以共享2 bit经典消息．安全分析表明, 该方案是安全的, 适合将三方秘密共享协议推广到多方的情形．

关键词: 纠缠交换, 量子秘密共享, 密集编码

Abstract:

A novel quantum secret sharing (QSS) scheme is proposed by using entanglement swapping on GHZ states. In the scheme, the sender Alice enables the two receivers, Bob and Charlie, to share her secret messages directly via GHZ states entanglement swapping and local unitary operations. This scheme is high efficient in that all the GHZ states can be used to transmit messages except those chosen for checking eavesdroppers, two bits classical messages can be shared by using two GHZ states entanglement swapping. The eavesdropping analysis shows explicitly that the scheme is secure. It is proper to generalize the triple-party QSS protocol to the multiparty situation.

Key words: entanglement swapping, quantum secret sharing, dense coding

中图分类号:

TN918.1

佟鑫, 温巧燕, 朱甫臣. 基于GHZ态纠缠交换的量子秘密共享[J]. 北京邮电大学学报, 2007, 30(1): 44-48.

TONG Xin1, WEN Qiao-yan1, ZHU Fu-chen2. Quantum Secret Sharing Based on GHZ States Entanglement Swapping[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2007, 30(1): 44-48.

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基于GHZ态纠缠交换的量子秘密共享

Quantum Secret Sharing Based on GHZ States Entanglement Swapping

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