论文标题
计算233U^+和233U的能量和超细结构常数
Calculation of energies and hyperfine structure constants of 233U^+ and 233U
论文作者
论文摘要
我们使用两种不同的方法对233U^+和233U的低洼态的能量和磁性偶极性超细结构常数进行了计算。铀具有六个价电子和非常沉重的核心，即使使用大规模计算资源也是精确原子理论的主要挑战。第一种方法将配置相互作用（CI）与一种方法相结合，使我们能够将核心价相关性与残留库仑相互作用的扰动理论的所有顺序包括在内。第二种方法是纯CI方法，允许使用不同的初始近似值。我们对所有计算的属性进行了详细的分析，并讨论了每种方法的优点和缺点。我们报告了U核磁矩的初步值，并概述了进一步实验的需求。
We carried out calculations of the energies and magnetic dipole hyperfine structure constants of the low-lying states of 233U^+ and 233U using two different approaches. With six valence electrons and a very heavy core, uranium represents a major challenge for precision atomic theory even using large-scale computational resources. The first approach combines configuration interaction (CI) with a method allowing us to include core-valence correlations to all orders of the perturbation theory over residual Coulomb interaction. The second approach is a pure CI method which allows the use of different initial approximations. We present a detailed analysis of all calculated properties and discuss the advantages and disadvantages of each of these methods. We report a preliminary value of the U nuclear magnetic moment and outline the need for further experiments.
