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Structure and Dynamics in Alkaline‐earth Atoms
Author(s) -
Aymar Mireille,
Lecomte J. M.,
LucKoenig E.,
Millet M.
Publication year - 2001
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200100054
Subject(s) - photoionization , chemistry , strontium , alkaline earth metal , ionization , spectral line , atomic physics , barium , molecular dynamics , quantum defect , quantum , ion , computational chemistry , inorganic chemistry , quantum mechanics , physics , alkali metal , organic chemistry , rydberg formula
Abstract In this paper we will show how the approach combining the eigenchannel R ‐matrix method to the techniques of multichannel quantum‐defect theory (MQDT) is a very powerful method to obtain realistic descriptions of complex spectra of alkaline‐earth atoms in the energy domain and to study the dynamics of various processes in these spectra. Several illustrations will be presented. Those on structure will concern photoionization spectra of barium and strontium at high energy and two‐photon ionization processes in magnesium and strontium. Then, recent results on the dynamics of coherent ionization processes will be presented.