A rational quantum state sharing protocol with semi-off-line dealer  

作　　者：Hua-Li Zhang Bi-Chen Che Zhao Dou Yu Yang Xiu-Bo Chen 张花丽;车碧琛;窦钊;杨榆;陈秀波(Information Security Center,State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China;School of Cyberspace Security,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]Information Security Center,State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]School of Cyberspace Security,Beijing University of Posts and Telecommunications,Beijing 100876,China

出　　处：《Chinese Physics B》2022年第5期157-164,共8页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2020YFB1805405);the 111 Project,China(Grant No.B21049);the Foundation of Guizhou Provincial Key Laboratory of Public Big Data,China(Grant No.2019BDKFJJ014);the Fundamental Research Funds for the Central Universities,China(Grant No.2020RC38)。

摘　　要：A rational quantum state sharing protocol with the semi-off-line dealer is proposed.Firstly,the dealer Alice shares an arbitrary two-particle entangled state with the players by Einstein-Podolsky-Rosen(EPR)pairs and Greenberger-Horne-Zeilinger(GHZ)states.The EPR pairs are prepared by Charlie instead of the dealer,reducing the workload of the dealer.Secondly,all players have the same probability of reconstructing the quantum state,guaranteeing the fairness of the protocol.In addition,the dealer is semi-off-line,which considerably reduces the information exchanging between the dealer and the players.Finally,our protocol achieves security,fairness,correctness,and strict Nash equilibrium.

关 键 词：rational quantum state sharing game theory semi-off-line Nash equilibrium 

分 类 号：O413[理学—理论物理]