Teleportation of a Coherent Superposition State Via a nonmaximally Entangled Coherent Xhannel

作     者：ZHENF Yi－xhuang GU Yong－jian 等 

作者机构：DepartmentofPhysicsWenzhouNormalCollege，Wenzhou325027.R.China LaboratoryofQuantumCommunicationandQuantumComputationUniversityofScienceandTechnologyofXhinaHefei230026P.R.China 

出 版 物：《量子光学学报》 (Journal of Quantum Optics)

年 卷 期：2002年第8卷第B09期

页      面：19-20页

核心收录：

学科分类：050302[文学-传播学] 05[文学] 070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0503[文学-新闻传播学] 0702[理学-物理学] 

主　　题：量子光学 纠缠态 纠缠播送 量子信息 一致叠加态 

摘      要：We investigate the problemm of teleportation of a superposition coherent state with nonmaximally entangled coherent channel. Two strategies are considered to complete the task. The first one uses entanglement concentration to purify the channel to a maximally entangled one. The second one teleports the state through the nonmaximally entangled coherent channel directly. We find that the probabilities of successful teleportations for the two strategies are depend on the amplitudes of the coherent states and the mean fidelity of teleportation using the first strategy is always less than that of the second strategy.