中国物理B ›› 2003, Vol. 12 ›› Issue (8): 861-865.doi: 10.1088/1009-1963/12/8/308
张天才1, 张俊香1, 谢常德1, 李英2
Li Ying (李英)ab, Zhang Tian-Cai (张天才)a, Zhang Jun-Xiang (张俊香)a, Xie Chang-De (谢常德)a
摘要: Quantum teleportation of one- and two-photon superposition states based on EPR entanglement of continuous-wave two-mode squeezed state is discussed. The fidelities of teleportation are deduced for two different input quantum states. The dependence of the fidelity on the parameters of EPR entanglement and the gain of the classical channels are shown numerically. Comparing with the teleportation of Fock state and coherent state, it is pointed out that for given EPR entanglement and classical gain, the higher the nonclassicality of the input state, the lower the accessible fidelity of teleportation.
中图分类号: (Quantum state engineering and measurements)