| Quantum analysis on the four-photon interference |
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| 引用本文： | 王若鹏,张会荣. Quantum analysis on the four-photon interference[J]. 中国物理 B, 2008, 17(1): 194-198 |
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| 作者姓名： | 王若鹏 张会荣 |
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| 作者单位： | Department of Physics and State Key Laboratory forMesoscopic Physics, Peking University, Beijing 100871,China;Department of Physics and State Key Laboratory forMesoscopic Physics, Peking University, Beijing 100871,China |
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| 摘 要： | We present a theory for quantum interference of four photons generated by spontaneous parametric downconversion. Detailed investigation of the dependence of fourfold coincidence count rate on time delay between the incident and the reflective pump laser pulses is carried out. Gaussian type dependence is found, and good agreement between our theoretical results and experimental data reported in the literature is achieved.
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| 关 键 词： | 量子干扰 四光量子 参量变化 转换率 |
| 收稿时间： | 2007-03-21 |
| 修稿时间： | 2007-08-02 |
Quantum analysis on the four-photon interference |
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| Wang Ruo-Peng and Zhang Hui-Rong. Quantum analysis on the four-photon interference[J]. Chinese Physics B, 2008, 17(1): 194-198 |
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| Authors: | Wang Ruo-Peng and Zhang Hui-Rong |
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| Affiliation: | Department of Physics and State Key Laboratory forMesoscopic Physics, Peking University, Beijing 100871,China |
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| Abstract: | We present a theory for quantum interference of four photonsgenerated by spontaneous parametric down-conversion. Detailedinvestigation of the dependence of fourfold coincidence count rateon time delay between the incident and the reflective pump laserpulses is carried out. Gaussian type dependence is found, and goodagreement between our theoretical results and experimental datareported in the literature is achieved. |
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| Keywords: | quantum interference fourphotons spontaneous parametric down conversion |
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