Magic wavelengths for the 7s_(1/2)6d_(3/2,5/2)transitions in Ra~＋  

作　　者：吴晓梅 李承斌 唐永波 史庭云 

机构地区：[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

出　　处：《Chinese Physics B》2016年第9期284-288,共5页中国物理B（英文版）

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

摘　　要：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 7s_（1/2）–6d_（3/2,5/2）transitions are identified.Comparing to the common radiofrequency（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＋.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 7s_（1/2）–6d_（3/2,5/2）transitions are identified.Comparing to the common radiofrequency（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＋.

关 键 词：magic wavelength Dirac–Fock core polarization 

分 类 号：O562[理学—原子与分子物理]