论文标题
多电子效应在锂状离子的超精细分裂中
Many-electron effects in the hyperfine splitting of lithiumlike ions
论文作者
论文摘要
针对广泛的核电数字$ z = 7-82 $，对对地面超精细离子进行了对地面超精细分裂的一键交换校正进行严格的QED评估。计算是在扩展的毛茸茸图片的框架中进行的，即，包括在零阶近似中包含有效的局部筛选电位。第三和更高订单的互相互作用贡献在使用递归扰动理论的BREIT近似框架内考虑了。与先前的理论计算相比，相互作用贡献对Li样离子中地面超精细分裂的贡献的准确性得到了显着提高。
The rigorous QED evaluation of the one- and two-photon exchange corrections to the ground-state hyperfine splitting in Li-like ions is presented for the wide range of nuclear charge number $Z= 7 - 82$. The calculations are carried out in the framework of the extended Furry picture, i.e., with inclusion of the effective local screening potential in the zeroth-order approximation. The interelectronic-interaction contributions of the third and higher orders are taken into account in the framework of the Breit approximation employing the recursive perturbation theory. In comparison to the previous theoretical calculations, the accuracy of the interelectronic-interaction contributions to the ground-state hyperfine splitting in Li-like ions is substantially improved.
