大学物理 ›› 2016, Vol. 35 ›› Issue (8): 36-38.

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参数微扰法计算氦原子基态能量

陆霁,李天乐,席伟,张昌莘   

  1. 广东石油化工学院物理系,广东茂名525000
  • 收稿日期:2015-06-30 修回日期:2015-12-06 出版日期:2016-08-20 发布日期:2016-08-20
  • 通讯作者: 张昌莘,E-mail: zcx2923018@ 163.com
  • 作者简介:陆霁( 1972—) ,女,广东汕头人,广东石油化工学院物理系讲师,主要从事物理教学和研究工作.
  • 基金资助:
    国家自然科学基金项目( 91121019) 、广东省科技计划项目( 2010B080701066) 资助

Calculation of ground state energy of the helium atom by parameter perturbation method

LU Ji,LI Tian-le,XI Wei,ZHANG Chang-xin   

  1. Department of Physics,Guangdong University of Petrochemical Technology,Maoming,Guangdong 525000,China
  • Received:2015-06-30 Revised:2015-12-06 Online:2016-08-20 Published:2016-08-20

摘要: 根据参数微扰法理论,选择有效核电荷数为z* = 2-σ 的两个类氢原子的ns态的波函数的组合,作为氦原子基态的1级至4级近似波函数.应用参数微扰法计算了氦原子基态4级近似能量.计算结果表明参数微扰法得到的氦原子基态4级近似能量与实验值的误差为ΔE= 0.004922028*es2/a0

关键词: 氦原子, 参数微扰法, 基态能量

Abstract: According to the parameter perturbation theory,a combination of the ns wave functions of two hydrogen-like atoms with effective nuclear charge number of Z* = 2-σ is chosen to be the first order approximation and the fourth order approximation of wave function for the ground state of helium atom. The fourth level approximate energy of the ground state of helium atom is calculated by using the application of perturbation method. The calculation results show that the error of the fourth level approximation energy of helium atomic ground state by the parameter perturbation method is ΔE= 0.004922028*es2/a0 comparing with the experiment result.

Key words: helium atom, parameter perturbation method, ground state energy