| ATOMIC AND MOLECULAR PHYSICS |
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Three-Dimensional Compensation for Minimizing Heating of the Ion in Surface-Electrode Trap |
| Ji Li1,2, Liang Chen1**, Yi-He Chen1, Zhi-Chao Liu1,2, Hang Zhang1,2, Mang Feng1** |
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071
2University of the Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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Ji Li, Liang Chen, Yi-He Chen et al 2020 Chin. Phys. Lett. 37 053701 |
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Abstract The trapped ions confined in a surface-electrode trap (SET) could be free from rf heating if they stay at the rf potential null of the potential well. We report our effort to compensate three-dimensionally for the micromotion of a single $^{40}$Ca$^{+}$ ion near the rf potential null, which largely suppresses the ion's heating and thus helps to achieve the cooling of the ion down to $3.4$ mK, which is very close to the Doppler limit. This is the prerequisite of the sideband cooling in our SET.
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Received: 21 January 2020
Published: 25 April 2020
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| Fund: Supported by the National Natural Science Foundation of China (Grant Nos. 11734018 and 11674360). |
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