Calculation of ground state energy of Lithium and Beryllium based on variational method

TL;DR

This paper calculates the ground state energies of Lithium and Beryllium atoms using a variational method, considering atomic structure and identity principles, achieving results that closely match experimental data.

Contribution

It introduces a variational approach that incorporates atomic shell structure and identity principles for accurate energy calculations of multi-electron atoms.

Findings

Calculated energies agree well with experimental data.

Method effectively accounts for atomic shell structure.

Provides a reliable approach for atomic energy computations.

Abstract

With the consideration of identity principle and atomic shell structure, we calculated the ground state energy of Lithium atom and Beryllium atom based on variational method, which accords quite well with the experimental results.