College Physics ›› 2025, Vol. 44 ›› Issue (3): 3-.doi: 10.16854/j.cnki.1000-0712.240265

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Calculation of degenerate perturbation for a helium atom

HUANG Yongyi   

  1. School of Physics, Xian Jiaotong University, Xian, Shaanxi 710049, China
  • Received:2024-06-02 Revised:2024-10-24 Online:2025-05-09 Published:2025-05-29

Abstract: We construct the zeroth approximate wavefunctions using Slaters determinants, calculate energy levels and their wavefunctions of a Helium atom in exited states, and discuss its ground energy level and ground wavefunction.

Key words: Slaters determinants, degenerate perturbation theory, helium atom