里德堡钠原子抗磁谱的模型势计算  

Model potential calculations of diamagnetic spectra of Rydberg sodium atoms

作　　者：孟慧艳[1,2,3] 史庭云[1] 詹明生[1] 

机构地区：[1]中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室,武汉430071 [2]中国科学技术大学近代物理系,合肥230026 [3]中国科学院研究生院,北京100080

出　　处：《原子与分子物理学报》2006年第B04期179-182,共4页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金（10374119,10474119）

摘　　要：用B样条基组展开方法结合模型势计算了里德堡钠原子抗磁谱和相应的振子强度谱，径向和角向均采用高阶B样条基组．计算结果与已有的R-矩阵和多通道量子亏损理论相结合（R-matrix＋MODT）法及其他理论计算结果作了比较，几种理论结果在我们所研究的能区内符合得非常好，本文方法较R-matrix＋MQDT法简单，易于推广到交叉电磁场中里德堡原于的精确谱的计算中．The energy spectra and oscillator strength of Rydberg sodium atoms in the uniform magnetic fields have been calculated using basis set method combined with model potential.Both the radial and angular wave-functions are expanded in terms of B-spline functions.The resultant size of Hamiltonian matrix is reduced considerably,which make the calculations can be carried out.The results are in good agreement with other theoretical calculations which use the R-matrix approach combined with quantum defects and other methods.The method presented in this paper can be extended easily to the cases of Rydberg atoms in crossed field problem.

关 键 词：B样条基组 R矩阵 能谱 振子强度 

分 类 号：O562.32[理学—原子与分子物理]