用稳定变分方法计算锂原子电多极极化率和两体色散系数

Multipolar polarizabilities and two-body dispersion coefficients for Li by a variationally stable procedure

以最弱受约束电子模型理论(WBEPM)所得到的锂原子基态波函数为基础,利用Gao和Starace提出的稳定变分方法,计算了锂原子的电多极极化率和锂-锂体系的两体色散系数,计算结果与已有文献吻合,但计算方法更为简化且便于推广到其他碱金属原子.

Based on the ground-state wave function of Li obtained by Weakest Bound Electron （WBEPM） theory, the multipolar polarizabilities of Li and the two-body dispersion coefficients for the Li-Li system are calculated by utilizing the variationally stable procedure proposed by Gao and Starace. Evaluated val- ues are in agreement with those previously reported, while the method is more simplified and easy to be extended to other alkali metal atoms.