Variational-perturbation calculation of the first excited state energy 
levels
for Helium atom

BAI Zhan-wu, YAN Zhan-yuan

doi:10.16854 /j.cnki.1000-0712.200022

College Physics >

2021 , Vol. 40 >Issue 01: 21 - 23

DOI: https://doi.org/10.16854 /j.cnki.1000-0712.200022

Variational-perturbation calculation of the first excited state energy levels for Helium atom

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Department of Mathematics and Physics，North China Electric Power University，Baoding，Hebei 071003，China

Received date: 2020-01-22

Revised date: 2020-04-27

Online published: 2021-01-08

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Abstract

The energies of 1S2S states of Helium atom are calculated by variational-perturbation method. The energies are calculated firstly by the variational method and then by the second-order perturbation theory. The results are superior to pure perturbation theory，and match well with the experimental data.

Key words： Helium atom; the first excited state; variational-perturbation theory

Cite this article

BAI Zhan-wu, YAN Zhan-yuan . Variational-perturbation calculation of the first excited state energy levels for Helium atom[J]. College Physics, 2021 , 40(01) : 21 -23 . DOI: 10.16854 /j.cnki.1000-0712.200022

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