Quantum Secret Sharing Based on GHZ States Entanglement Swapping

doi:10.13190/jbupt.200701.44.tongx

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2007, Vol. 30 ›› Issue (1): 44-48.doi: 10.13190/jbupt.200701.44.tongx

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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

Abstract

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

CLC Number:

TN918.1

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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Quantum Secret Sharing Based on GHZ States Entanglement Swapping

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