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Effect of Laser Cooling on Frequency Standard of Single Ca+ Ion Trapped in a Radio-Frequency Paul Trap |
| WU Li-Jin;SHI Ting-Yun;GAO Ke-Lin |
| 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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| Cite this article: |
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WU Li-Jin, SHI Ting-Yun, GAO Ke-Lin 2006 Chin. Phys. Lett. 23 83-86 |
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Abstract The source of systematic frequency shift of single-ion optical frequency standard of 40Ca+ 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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| Keywords:
32.80.Qk
32.80.Pj
32.60.+i
32.70.Cs
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Published: 01 January 2006
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| PACS: |
32.80.Qk
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(Coherent control of atomic interactions with photons)
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32.80.Pj
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32.60.+i
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(Zeeman and Stark effects)
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32.70.Cs
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(Oscillator strengths, lifetimes, transition moments)
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