| Quantum teleportation of one－ and two－photon superposition states |
| |
| 引用本文： | 李英,张天才,张俊香,谢常德. Quantum teleportation of one－ and two－photon superposition states[J]. 中国物理, 2003, 12(8): 861-865. DOI: 10.1088/1009-1963/12/8/308 |
| |
| 作者姓名： | 李英 张天才 张俊香 谢常德 |
| |
| 作者单位： | (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 |
| |
| 基金项目： | 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 (Grant No 20031002) and Research Funds for Returned Scholar Abroad from Shanxi Province. |
| |
| 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 axe 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.
|
| 关 键 词： | 量子输运 单光子叠加态 双光子叠加态 量子光学 压缩态 保真度 |
| 收稿时间： | 2002-11-18 |
Quantum teleportation of one- and two-photon superposition states |
| |
| Li Ying,Zhang Tian-Cai,Zhang Jun-Xiang and Xie Chang-De. Quantum teleportation of one- and two-photon superposition states[J]. Chinese Physics, 2003, 12(8): 861-865. DOI: 10.1088/1009-1963/12/8/308 |
| |
| Authors: | Li Ying Zhang Tian-Cai Zhang Jun-Xiang Xie Chang-De |
| |
| Affiliation: | 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; 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. |
| |
| Keywords: | quantum teleportation one-photon superposition state two-photon superposition state fidelity |
|
| 点击此处可从《中国物理》浏览原始摘要信息 |
|
点击此处可从《中国物理》下载免费的PDF全文 |
