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Chin. Phys. B, 2016, Vol. 25(9): 093101    DOI: 10.1088/1674-1056/25/9/093101

Magic wavelengths for the 7s1/2-6d3/2,5/2 transitions in Ra+

Xiao-Mei Wu(吴晓梅)1,2, Cheng-Bin Li(李承斌)1, Yong-Bo Tang(唐永波)3, Ting-Yun Shi(史庭云)1
1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Department of Physics, Henan Normal University, Xinxiang 453007, China

The dynamic polarizabilities of the 7s and 6d states of Ra+ are calculated using a relativistic core polarization potential method. The magic wavelengths of the 7s1/2-6d3/2,5/2 transitions are identified. Comparing to the common radio-frequency (RF) ion traps, using the laser field at the magic wavelength to trap the ion could suppress the frequency uncertainty caused by the micromotion of the ion, and would not affect the transition frequency measurements. The heating rates of the ion and the powers of the laser for the ion trapping are estimated, which would benefit the possible precision measurements based on all-optical trapped Ra+.

Keywords:  magic wavelength      Dirac-Fock      core polarization  
Received:  10 April 2016      Revised:  17 May 2016      Accepted manuscript online: 
PACS:  31.15.ap (Polarizabilities and other atomic and molecular properties)  
  31.15.bu (Semi-empirical and empirical calculations (differential overlap, Hückel, PPP methods, etc.))  
  31.30.jc (Relativistic corrections to atomic structure and properties)  

Project supported by the National Basic Research Program of China (Grant No. 2012CB821305) and the National Natural Science Foundation of China (Grant Nos. 91336211 and 11504094).

Corresponding Authors:  Cheng-Bin Li     E-mail:

Cite this article: 

Xiao-Mei Wu(吴晓梅), Cheng-Bin Li(李承斌), Yong-Bo Tang(唐永波), Ting-Yun Shi(史庭云) Magic wavelengths for the 7s1/2-6d3/2,5/2 transitions in Ra+ 2016 Chin. Phys. B 25 093101

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