| Kinetic theory of （2＋4）-level atom in σ^＋ -σ^- laser fields |
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| 作者姓名： | 于闯 于得水 陈景标 |
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| 作者单位： | Institute of Quantum Electronics, School of ElectronicsEngineering& Computer Science, Peking University, Beijing 100871, China;Institute of Quantum Electronics, School of ElectronicsEngineering& Computer Science, Peking University, Beijing 100871, China;Institute of Quantum Electronics, School of ElectronicsEngineering& Computer Science, Peking University, Beijing 100871, China |
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| 基金项目： | Project supported by the NationalFundamental Research Programme ofChina (Grants No 2005CB724500). |
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| 摘 要： | The kinetic theory of (2+4)-level atoms in σ + σ- laser fields is presented.We systemically discuss friction coefficient,momentum diffusion tensor and atomic temperature based on the Fokker-Planck equation.This cooling system is much like that of a (1+3)-level atom,and the temperature is still limited to the Doppler temperature.Since this cooling system has not been investigated before,this work may be regarded as a necessary complement to the laser cooling theory.
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| 关 键 词： | laser cooling Fokker-Planck equation quantum optics |
| 收稿时间： | 2008-07-18 |
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