ON SHOOTING METHODS FOR CALCULATION OF POTENTIAL RESONANCES

Authors
CIZEK M HORACEK J
Citation
M. Cizek et J. Horacek, ON SHOOTING METHODS FOR CALCULATION OF POTENTIAL RESONANCES, Journal of physics. A, mathematical and general, 29(19), 1996, pp. 6325-6342
Citations number
47
Categorie Soggetti
Physics
Journal title
Journal of physics. A, mathematical and general → ACNP
ISSN journal
03054470
Volume
29
Issue
19
Year of publication
1996
Pages
6325 - 6342
Database
ISI
SICI code
0305-4470(1996)29:19<6325:OSMFCO>2.0.ZU;2-K
Abstract
Two shooting methods for calculation of potential (shape) resonances a re described and their efficiency tested. It is found that although bo th methods are based on calculation of the Siegert (i.e. exponentially increasing non-normalizable) state, the methods are stable and. very accurate values of resonance energies and widths are obtainable. It is hoped that the resonance parameters obtained here can serve as test e xamples for various approximate methods for calculating resonance ener gies and widths.