a State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China; b Institute of Quantum Optics & Quantum Information Science; Department of Physics, Shangluo Normal College; Shangzhou 726000, China
Abstract 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.
Received: 18 November 2002
Revised: 14 February 2003
Accepted manuscript online:
Fund: Project supported by the Teaching and Research Foundation for Outstanding Young Teachers in Higher Education Institutions, Ministry of Education, China, the Overseas Youth Scholar Collaboration Foundation (Grant No 69928504), Natural Science Foundation (G
Cite this article:
Li Ying (李英), Zhang Tian-Cai (张天才), Zhang Jun-Xiang (张俊香), Xie Chang-De (谢常德) Quantum teleportation of one- and two-photon superposition states 2003 Chinese Physics 12 861
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