Probabilistic Teleportation of a Three-Particle GHZ State via Two Three-Particle Entangled W States

作     者：LIN Xiu LI Hong-Cai 

作者机构：School of Physics and Optoelectronics Technology Fujian Normal University Fuzhou 350007 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2006年第45卷第6期

页      面：1018-1022页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：The project supported by National Natural Science Foundation of Chins under Grant No. 10574022 and the Natural Science Foundation of Fujian Province of China under Grant No. Z0512006 

主　　题：probabilistic teleportation three-particle entangled state partially three-particle entangled W state unitary transformation 

摘      要：A scheme for teleporting an unknown three-particle GHZ state from a sender to either one of two receivers is proposed. In this scheme, the quantum channel is composed of two non-maximally three-particle entangled W states. An unknown three-particle GHZ state can be perfectly teleported probabilistically if the sender performs two generalized Bell-state measurements and the Hadamard operation while either one of two receivers introduces an ancillary particle which is one of the final three particle constituting the teleported state, then performs the controlled-not operation with the ancillary particle as the target bit and introduces an appropriate unitary transformation with the help of the other receiver＇s simple measurements. All kinds of unitary transformations are given in detail. The present scheme may be directly generalized to teleport an unknown multiparticle GHZ state via two three-particle entangled W states used as the quantum channel.