PIECEWISE PERTURBATION-METHODS FOR CALCULATING EIGENSOLUTIONS OF A COMPLEX OPTICAL-POTENTIAL

Authors
IXARU LG RIZEA M VERTSE T
Citation
Lg. Ixaru et al., PIECEWISE PERTURBATION-METHODS FOR CALCULATING EIGENSOLUTIONS OF A COMPLEX OPTICAL-POTENTIAL, Computer physics communications, 85(2), 1995, pp. 217-230
Citations number
18
Categorie Soggetti
Mathematical Method, Physical Science","Physycs, Mathematical","Computer Science Interdisciplinary Applications
Journal title
Computer physics communications → ACNP
ISSN journal
00104655
Volume
85
Issue
2
Year of publication
1995
Pages
217 - 230
Database
ISI
SICI code
0010-4655(1995)85:2<217:PPFCEO>2.0.ZU;2-R
Abstract
It is shown that the piecewise perturbation methods provide a powerful numerical tool for solving the complex eigenvalue problem of the Schr odinger equation in a complex optical potential. One of them, the CPM( 2), is compared with the existing NAG subroutines and found substantia lly faster. We also present appropriate methods to compute the solutio n in the vicinity of the origin and in the asymptotic region.