Eric Ouma Jobunga
Technical University of Mombasa, Kenya
Title: Pseudopotential for many-electron atoms
Biography
Biography: Eric Ouma Jobunga
Abstract
Atoms form the basic building blocks of molecules and condensed matter. Other than hydrogen atom, all the others have more than one electron which interact with each other besides interacting with the nucleus. Electron-electron correlation forms the basis of diffi culties encountered in many-body problems. Accurate treatment of the correlation problem is likely to unravel some nice physical properties of matter embedded in this correlation. In an eff ort to tackle this many-body problem, two complementary parameter-free pseudopotentials for n-electron atoms and ions are suggested in this study. Using one of the pseudopotentials, near-exact values of the ground state ionization energies of helium, lithium and beryllium atoms have been calculated. Th e other pseudopotential also proves to be capable of yielding reasonable and reliable quantum physical observables within the non-relativistic quantum mechanics.