Comparison of the Radial Integrals of Variational Wave Functions for Two-electron systems

Abstract

In this work, two-electron systems such as−H ion, He atom and+Li ion are investigated by using variational method. Hylleraas-type 3-parameter wave function is used as the trial wave function proposed by Mukoyama. The radial integrals of variational wave functions for the above mentioned systems are calculated to check their accuracy. The radial integrals are used for determining the properties of the two-electron system such as dipole polarizability and electron scattering factor. They are calculated and the obtained results are also compared with the other results. It is found that they are in good agreement with other results.