2017/11/30 by Eric Ouma Jobunga · 1 citation
Materials Science · Physics and Astronomy · #Atomic and Molecular Physics #Atomic physics #Crystallography and Radiation Phenomena #Electron #Electron and X-Ray Spectroscopy Techniques #Physics #Pseudopotential #Quantum mechanics #physics.atom-ph #quant-ph
paper · pdf · doi:10.22606/jaap.2020.22002
arxiv created 2020/04/07 · openalex publication_date 2020/04/24 · arxiv updated 2022/03/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Electron-electron correlation forms the basis of difficulties encountered in multi-electron systems. Accurate treatment of the correlation problem is likely to unravel some nice physical properties of matter embedded in this correlation. In an effort to tackle this multi-electron problem, two complementary parameter-free pseudopotentials for n-electron atoms are suggested in this study. Using one of the pseudopotentials, near-exact values of the groundstate ionization potentials of helium, lithium, and berrylium atoms have been calculated. The other pseudopotential also proves to be capable of yielding reasonable and reliable ionization potentials within the non-relativistic quantum mechanics framework.