| Effect of Laser Cooling on Frequency Standard of Single Ca^＋ Ion Trapped in a Radio-Frequency Paul Trap |
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| 作者姓名： | 吴礼金 史庭云 高克林 |
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| 作者单位： | Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10274094 and 60490280, and the National Fundamental Research Programme of China under Grant No 2005CB724502. |
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| 摘 要： | The source of systematic frequency shift of single-ion optical frequency standard of^40 Ca^＋ ion trapped in endcap trap and laser-cooled to a few of mK is analysed and calculated. Second-order Doppler shift, Stark shift due to micromotion and thermal motion, blackbody Stark shift and ac Stark shift are calculated for the ground state and excited 3d ^2D5/2 state. The Hertz-level measurement of the optical clock frequency in a single ^40Ca^＋ ion can be performed.
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| 关 键 词： | 激光冷却 频率标准 钙离子俘获 发射频率 原子物理学 |
| 收稿时间： | 2005-09-30 |
| 修稿时间： | 2005-09-30 |
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