平行电磁场中的Rydberg锂原子吸收谱的模型势计算  

Model potential calculations of oscillator strength spectra of lithium atoms in parallel electric and magnetic fields

作　　者：孟慧艳[1] 康帅[1] 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

出　　处：《物理学报》2007年第6期3198-3204,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10674154;10474119)资助的课题~~

摘　　要：用B样条基组展开方法结合模型势计算了Rydberg锂原子在平行电磁场下的振子强度谱.径向和角向均采用高阶B样条基组.计算结果与已有的实验结果符合得很好.利用分波分析法,对部分谱线的振子强度的强弱进行了分析.本文方法简单有效,易于推广到交叉电磁场中Rydberg原子的精确谱的计算.We present oscillator strength spectra of Rydberg lithium atoms in parallel electric and magnetic fields obtained via the B-spline basis set method combined with model potential. Both the radial and angular wavefunctions are expanded in terms of B-spline functions. The results are in good agreement with previous high-precision experiments. By analyzing the components of partial-wave, we give an explanation to the oscillator strength of part of the spectrum. The method of this paper is simple and effective. It is suggested that the present method can be applied to deal with the problem of Rydberg atom in crossed magnetic and electric field.

关 键 词：B样条 能谱 振子强度 平行电磁场 RYDBERG原子 

分 类 号：O562.2[理学—原子与分子物理]