Probabilistic teleportation of a two-particle entangled state via a partially entangled pair

作     者：CHEN Xiu-bo LIU Xin-yuan WEN Qiao-yan ZHU Fu-chen 

作者机构：School of Science Beijing University of Posts and Telecommunications Beijing 100876 China State Key Laboratory of Integrated Services Network Xidian University Xi'an 710071 China National Laboratory for Modern Communications Chengdu 610041 China 

出 版 物：《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报（英文版）)

年 卷 期：2006年第13卷第4期

页      面：39-42页

核心收录：

学科分类：07[理学] 070104[理学-应用数学] 0701[理学-数学] 

基　　金：National Natural Science Foundation of China (60373059) Major Research plan of the National Natural Science Foundation of China (90604023) National Laboratory for Modem Communications Science Foundation of China (51436020103DZA001) National Research Foundation for the Doctoral Program of Higher Education of China (20040013007), ISN 0pen Foundation 

主　　题：quantum teleportation partially entangled pair two-particle entangled state POVM 

摘      要：A scheme for teleporting an unknown two-particle entangled state is proposed. In comparison with the recent protocol （Cola et al., Phys. Lett. A 337 （2005））, the entangled state as quantum channel required by this scheme is a single, partially entangled pair, which is much easier to prepare and maintain. Furthermore, a positive operator valued measure （POVM） is adopted and all kinds of transformations performed by sender and receiver are given in detail. It is shown that the probability of successful teleportation is twice the modulus square of the smaller Schmidt coefficient of the two-particle entangled state, and the fidelity can reach one.