Use of the independent-particle model to treat curve-crossing transitions

L. F. Errea, A. Macías, L. Méndez, A. Riera
2001 Physical Review A. Atomic, Molecular, and Optical Physics  
We discuss the usefulness of the independent-particle model to describe charge-transfer processes. We consider, as a benchmark case, avoided crossing transitions in two-electron systems, described by means of the Landau-Zener-Stueckelberg model. It is shown that the independent-particle model, with an equivalentelectron interpretation of the one-electron transition probabilities, reproduces single-electron transition probabilities for a wide range of physical situations. Significant deviations
more » ... ificant deviations with respect to a two-electron calculation are related to Stueckelberg oscillations of the transition probabilities.
doi:10.1103/physreva.64.032714 fatcat:k6anfwncnrgw5mpywnl6kto2zy