Composite Particles in Many-Body Systems
- 20 September 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 27 (12) , 822-826
- https://doi.org/10.1103/physrevlett.27.822
Abstract
Presented herein is a second-quantized formulation for a system of interacting nuclei and electrons expressed in terms of the creation and annihilation operators of various species of atoms and ions which can be formed by combining various numbers of the "elementary" particles. Processes such as ionization and recombination appear naturally. Explicit expressions for interatomic forces including exchange effects are generated from a "cluster expansion" reminiscent of the Ursell expansion.Keywords
This publication has 2 references indexed in Scilit:
- New Method for Treating Systems Containing Elementary Composite Particles (Nonrelativistic Theory)Physical Review Letters, 1971
- Formulation of the Many-Body Problem for Composite ParticlesJournal of Mathematical Physics, 1963