锂原子的超精细结构

HYPERFINE STRUCTURE OF LITHIUM ATOM

采用新近发展起来的全实加关联（ＦｕｌＣｏｒｅＰｌｕｓＣｏｒｒｅｌａｔｉｏｎ）方法（简称ＦＣＰＣ方法）系统地研究了锂原子基态和低激发态能级的超精细结构。由于充分地考虑了电子间的关联效应，所得到的超精细结构常数与实验值吻合得很好。所得结果还表明ＦＣＰＣ波函数在整个位形空间均具有良好的行为。

he hyperfine structures of ground and lowlyexcited states for lithium atom are calculated with the fullcore plus correlation (FCPC) method. Our calculated results are in excellent agreement with experimental data in the literature. Particularly, our result of Fermi term for 1s22p state is better than other previous calculated results. They show that our FCPC wave function should be reliable in the whole configuration space from small r to large r.