Semiclassical calculations for energy transfer reactions in collisions between polarized sodium atoms

Autor:	J H Nijland, P H T Philipsen, H G M Heideman, H Rudolph
Rok vydání:	1993
Předmět:	Physics Semiclassical physics Condensed Matter Physics Quantum number Atomic and Molecular Physics and Optics symbols.namesake Excited state symbols Atomic physics Hamiltonian (quantum mechanics) Adiabatic process Wave function Multipole expansion Basis set
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 26:939-956
ISSN:	1361-6455 0953-4075
DOI:	10.1088/0953-4075/26/5/016
Popis:	A semiclassical theory is applied to describe collisions between sodium atoms which are independently excited to a specific magnetic sublevel of the 3p state. Cross sections for energy transfer are calculated for different combinations of the initial magnetic quantum numbers (ma,mb) of the atoms, and as a function of the thermal collision velocity. The motion of the cores is described either by curved trajectories, based on non-averaged adiabatic potential curves, or by straight trajectories. The largest basis set used for the electronic wavefunction contains the 4p, 5s, 4d and 4f exit channels. The electronic interaction Hamiltonian is approximated by a multipole expansion, for which all non-vanishing contributions are evaluated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dd5c19e58fc5337d5c641b2e7575eff4 https://doi.org/10.1088/0953-4075/26/5/016 Zobrazit plný text záznamu