研究类氦原子基态能量的参数微扰法  

Research on the ground state energy of helium-like atom by parameter perturbation method

作　　者：张昌莘[1] 宁土荣 陆霁[1] 

机构地区：[1]广东石油化工学院物理系,广东茂名525000

出　　处：《大学物理》2015年第2期32-34,共3页College Physics

基　　金：国家自然科学基金项目(91121019);广东省科技计划项目(2010B080701066)资助

摘　　要：考虑了类氦原子中电子对核的屏蔽效应,建立了含有屏蔽效应参数的哈密顿算符,并应用微扰理论研究了类氦原子基态能量.通过参数微扰法计算的类氦原子一级近似基态能量与变分法得到的能量完全相同,比无参数微扰法计算的能量更加接近实验值.参数微扰法为研究多电子原子能级和原子能级精细结构提供了一种新的方法.The Hamiltonian containing shielding effect parameters is established by considering the helium-like atom electron nuclear shielding effect,the ground state energy of the helium- like atom is investigated by the perturbation theory. In comparison with non- parametric perturbation method,the energy acquired by parameter perturbation method,exactly the same as by the variational method,is close to the experimental values. It indicates that the parameter perturbation method provides us a new approach to study the multi- electron atomic levels and the fine structure of atomic levels.

关 键 词：类氦原子 基态能量 参数微扰法 

分 类 号：O413.1[理学—理论物理]