Secret sharing of quantum information via entanglement swapping  

作　　者：张英俏 金星日 张寿 

机构地区：[1]Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China [2]Department of Physics, College of Science, Yanbian University, Yanji 133002, China

出　　处：《Chinese Physics B》2006年第10期2252-2255,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （Grant No 60261002） and the Science Foundation of Yanbian University （Grant No 2005-20）.

摘　　要：Based on entanglement swapping, a scheme for the secret sharing of an arbitrary two-particle entangled state is proposed. If the controllers do not co-operate with the eavesdropper, the eavesdropper＇s successful probability decreases with the number of the controllers increasing. In addition, only the Bell-state measurements are required to realize the secret sharing scheme.Based on entanglement swapping, a scheme for the secret sharing of an arbitrary two-particle entangled state is proposed. If the controllers do not co-operate with the eavesdropper, the eavesdropper＇s successful probability decreases with the number of the controllers increasing. In addition, only the Bell-state measurements are required to realize the secret sharing scheme.

关 键 词：secret sharing two-particle entangled state Dell-state measurements entanglement swapping 

分 类 号：O413[理学—理论物理]