Demonstration of Systematic Improvements in Application of the Variational Method to Strongly Bound Potentials

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Bibliographic Details
Title: Demonstration of Systematic Improvements in Application of the Variational Method to Strongly Bound Potentials
Language: English
Authors: Ninemire, B., Mei, W. N.
Source: International Journal of Mathematical Education in Science and Technology. Jul-Aug 2004 35(4):565-583.
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Peer Reviewed: Y
Page Count: 19
Publication Date: 2004
Document Type: Journal Articles
Reports - Evaluative
Descriptors: Item Response Theory
ISSN: 0020-739X
Abstract: In applying the variational method, six different sets of trial wave functions are used to calculate the ground state and first excited state energies of the strongly bound potentials, i.e. V(x)=x[2m], where m = 4, 5 and 6. It is shown that accurate results can be obtained from thorough analysis of the asymptotic behaviour of the solutions. Consequently, it was found that there is a progressive qualitative change in the wave functions from the harmonic to anharmonic and then strongly bounded region, which explains why using a harmonic oscillator wave function together with the conventional perturbative approach to calculate the energy correction, was unsuccessful.
Abstractor: Author
Number of References: 20
Entry Date: 2005
Access URL: https://taylorandfrancis.metapress.com/link.asp?target=contribution&id=K841033763730546
Accession Number: EJ691836
Database: ERIC
Description
Abstract:In applying the variational method, six different sets of trial wave functions are used to calculate the ground state and first excited state energies of the strongly bound potentials, i.e. V(x)=x[2m], where m = 4, 5 and 6. It is shown that accurate results can be obtained from thorough analysis of the asymptotic behaviour of the solutions. Consequently, it was found that there is a progressive qualitative change in the wave functions from the harmonic to anharmonic and then strongly bounded region, which explains why using a harmonic oscillator wave function together with the conventional perturbative approach to calculate the energy correction, was unsuccessful.
ISSN:0020-739X