RUI: Indirect Calculation of Lamb Shifts in Three-Electron Atoms (Physics)

RUI：三电子原子兰姆位移的间接计算（物理）

• 批准号: 8704125
• 负责人: Frederick King
• 金额: $ 5.57万
• 依托单位: University of Wisconsin-Eau Claire
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8704125&HistoricalAwards=false
• 关键词: RUI; Indirect; Calculation; Lamb; Shifts

The objectives of the proposed research are (i) to obtain an extremely accurate value for the non-relativistic ground-state energy of Li I; (ii) to calculate the relativistic contributions to the ground state energy of Li I; (iii) to combine the results of (i) and (ii) to obtain the absolute ground state Lamb shift for Li I; (iv) to calculate other members of the Li I isoelectronic series to determine the Z-dependent behavior of the ground state Lamb shift; and (v) to extend the study to excited states so as to determine the Lamb shift contribution to various spectral transitions. The proposed research will involve undergraduates in all sections of the work except one. These students will be exposed to ideas from the four areas of chemistry, physics, computer science, and mathematics. The skills these students pick up, such as practical computer programming, numerical analysis, optimization theory, and the general mechanics of attacking and solving a research problem, provide an important asset for postgraduate studies.

本研究的目的是：(1)获得Li_i的非相对论基态能量的极高精确值；(2)计算Li_i基态能量的相对论贡献；(3)结合(I)和(Ii)的结果，得到Li_i的绝对基态Lamb位移；(Iv)计算Li I等电子系列的其他成员，以确定基态Lamb位移的Z相关行为；以及(V)将研究扩展到激发态，以确定Lamb位移对各种光谱跃迁的贡献。拟议的研究将让本科生参与这项工作的所有部分，只有一个除外。这些学生将接触到化学、物理、计算机科学和数学四个领域的思想。这些学生学到的技能，如实用计算机编程、数值分析、最优化理论，以及攻击和解决研究问题的一般机制，为研究生学习提供了重要的资产。