Iterative calculations of photoionization cross sections by using the Lanczos algorithm and the complex coordinate method in the discrete variable representation

Authors
Suno, H Andric, L Grozdanov, TP McCarroll, R
Citation
H. Suno et al., Iterative calculations of photoionization cross sections by using the Lanczos algorithm and the complex coordinate method in the discrete variable representation, PHYS LETT A, 265(5-6), 2000, pp. 377-383
Citations number
22
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
265
Issue
5-6
Year of publication
2000
Pages
377 - 383
Database
ISI
SICI code
0375-9601(20000207)265:5-6<377:ICOPCS>2.0.ZU;2-D
Abstract
The combination of the Lanczos algorithm and the complex coordinate method, implemented in the discrete variable representation is used to obtain dire ctly the complete photoabsorption spectrum in a single calculation. The met hod is iterative, based on the continued fraction representation of the Gre en function. Test calculations of the cross sections for photoionization of hydrogen, lithium and sodium atoms are presented. The convergence properti es of the method are discussed. (C) 2000 Published by Elsevier Science B.V. All rights reserved.