This book explains an important problem of quantum mechanics, the description of wave functions of many particle systems. It helps to construct these wave functions. It appeals to advanced students and theoretical physicists.

This book is unique in its detailed description of this important approach to problems of quantum mechanics Includes supplementary material: sn.pub/extras

Inhalt

1. Introduction.- 2. General Properties of Wave Functions.- 2.1 Asymptotic Form of Wave Functions.- 2.2 Asymptotic Perturbed Wave Function.- 2.3 Wave Function for rij ? 0.- 2.4 Wave Function for rij and rik ? 0.- 2.5 Local Satisfaction of Schrödinger Equation.- 2.6 Variational Stationary Property.- 2.7 Variational Approach to Perturbations.- 2.8 Generalised Virial Theorem.- 2.9 A Simple Example.- 3. Two- and Three-Electron Atoms and Ions.- 3.1 A Simple Wave Function.- 3.2 Wave Functions Satisfying Cusp, Coalescence and Asymptotic Conditions.- 3.3 Three-Electron Wave Functions.- 4. Polarizabilities and Dispersion Coefficients.- 4.1 Polarizabilities.- 4.2 Dispersion Coefficients.- 4.3 Alkali Isoelectronic Sequences.- 4.4 Asymptotic Polarizabilities and Dispersion Coefficients.- 5. Asymptotically Correct Thomas-Fermi Model Density.- 5.1 Thomas-Fermi Model.- 5.2 Solution for the Thomas-Fermi Density.- 5.3 Asymptotic Density.- 5.4 Modified Density.- 5.5 Applications.- 6. Molecules and Molecular Ions with One and Two Electrons.- 6.1 Wave Functions for One-Electron Molecular Ions.- 6.2 Energies for One-Electron Molecular Ions.- 6.3 Wave Function for H2 and He2++.- 6.4 Results for the Ground State.- 7. Interaction of an Electron with Ions, Atoms, and Molecules.- 7.1 Atomic Rydberg States.- 7.2 Electron-Atom and Electron-Molecule Scattering at High Energies.- 8. Exchange Energy of Diatomic Systems.- 8.1 Exchange Energy of Dimer Ions.- 8.2 Exchange Energy of Diatomic Molecules.- 9. Inter-atomic and Inter-ionic Potentials.- 9.1 Exchange Energy and Exchange Integral in the Heitler-London Theory.- 9.2 Generalized Heitler-London Theory.- 9.3 Inter-atomic and Inter-ionic Potentials.- 10. Proton and Neutron Densities in Nuclei.- 10.1 Semi-phenomenological Density.- 10.2 Determination of the Parameters.- 10.3 Results.- References.