One-Dimensional Model for Exchange Forces
- 1 July 1968
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 49 (1) , 35-38
- https://doi.org/10.1063/1.1669830
Abstract
Four different types of perturbation theories for the exchange forces between two atoms are applied to the lowest gerade and ungerade state of a simple one‐dimensional model. It is shown that the second‐order energy in one of the expansions (the Eisenschitz–London, van der Avoird, or Hirschfelder HAV expansion) exhibits undesirable behavior in the limit corresponding to large internuclear distances.Keywords
This publication has 17 references indexed in Scilit:
- Exchange and Coulomb Energy of H2 Determined by Various Perturbation MethodsThe Journal of Chemical Physics, 1968
- Comment on Van der Avoird's wave operator formalismChemical Physics Letters, 1967
- Exchange interactions between atoms or molecules in different perturbation formalisms. Application to three-atom exchange forcesChemical Physics Letters, 1967
- Perturbation theory for exchange forces, IChemical Physics Letters, 1967
- Schrödinger Perturbation Formalism for Exchange Interactions between Atoms or MoleculesPhysical Review B, 1967
- A new description of interatomic and intermolecular interactionsChemical Physics Letters, 1967
- Class of Nonanalytic Perturbations in Quantum MechanicsJournal of Mathematical Physics, 1967
- Intermolecular interactions by perturbation theory including exchange effectsChemical Physics Letters, 1967
- The He-He potential energy in the region of the van der Waals minimumMolecular Physics, 1967
- Über das Verhältnis der van der Waalsschen Kräfte zu den homöopolaren BindungskräftenThe European Physical Journal A, 1930