中国物理B ›› 2006, Vol. 15 ›› Issue (8): 1766-1771.doi: 10.1088/1009-1963/15/8/022
张 静1, 张俊香1, 张天才1, 李 英2
Li Ying(李英)a) b), Zhang Jing(张静)a), Zhang Jun-Xiang(张俊香)a), and Zhang Tian-Cai(张天才)a)†
摘要: This paper has investigated quantum teleportation of even and odd coherent states in terms of the EPR entanglement states for continuous variables. It discusses the relationship between the fidelity and the entanglement of EPR states, which is characterized by the degree of squeezing and the gain of classical channels. It shows that the quality of teleporting quantum states also depends on the characteristics of the states themselves. The properties of teleporting even and odd coherent states at different intensities are investigated. The difference of teleporting two such kinds of quantum states are analysed based on the quantum distance function.
中图分类号: (Quantum communication)