中国物理B ›› 2003, Vol. 12 ›› Issue (8): 861-865.doi: 10.1088/1009-1963/12/8/308

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Quantum teleportation of one- and two-photon superposition states

张天才1, 张俊香1, 谢常德1, 李英2   

  1. (1)State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China; (2)State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China; Institute of Quantum Optics & Quantum Information Science; Department of Physics, Shangluo Normal College; Shangzho
  • 收稿日期:2002-11-18 修回日期:2003-02-14 出版日期:2003-08-16 发布日期:2005-03-16
  • 基金资助:
    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

Quantum teleportation of one- and two-photon superposition states

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   

  1. 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
  • Received:2002-11-18 Revised:2003-02-14 Online:2003-08-16 Published:2005-03-16
  • Supported by:
    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

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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.

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.

Key words: quantum teleportation, one-photon superposition state, two-photon superposition state, fidelity

中图分类号:  (Quantum state engineering and measurements)

  • 42.50.Dv
03.67.Mn (Entanglement measures, witnesses, and other characterizations) 03.67.Hk (Quantum communication)