
Accession Number : ADA298792
Title : Convergence Acceleration for the Kohn Variational Method in the Presence of a LongRange Interaction,
Corporate Author : PHILLIPS LAB HANSCOM AFB MA
Personal Author(s) : Forrey, Robert C. ; Hill, Robert N. ; Sharma, Ramesh D.
PDF Url : ADA298792
Report Date : 06 SEP 1995
Pagination or Media Count : 19
Abstract : The paper presents a distorted wave generalization of the Smatrix version of the Kohn variational principal developed by Zhang, Chu, and Miller J. Chem. Phys. 88, 10 (1988). For scattering in the presence of a long range interaction, the larger asymptotic solution to the Schrodinger equation is built into the Kohn variational principal order by order in an effort to accelerate convergence of the shortrange square integrable part of the basis set expansion. The improvement in the rate of convergence is demonstrated by applying the method to a longrange model potential. Multichannel scattering is discussed. (AN)
Descriptors : *SCHRODINGER EQUATION, *VARIATIONAL PRINCIPLES, *S MATRIX, *POTENTIAL SCATTERING, MATHEMATICAL MODELS, REPRINTS, ACCELERATION, CHARGED PARTICLES, ELECTRON ENERGY, APPROXIMATION(MATHEMATICS), CONVERGENCE, WAVE FUNCTIONS, DISTORTION, PLANE WAVES, VARIATIONAL METHODS, MULTICHANNEL, PHASE SHIFT, BESSEL FUNCTIONS.
Subject Categories : Numerical Mathematics
Nuclear Physics & Elementary Particle Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE