Finite eigenfunctions in the WKB approximation
作者:
U. Sukhatme,
A. Pagnamenta,
期刊:
American Journal of Physics
(AIP Available online 1991)
卷期:
Volume 59,
issue 10
页码: 944-947
ISSN:0002-9505
年代: 1991
DOI:10.1119/1.16678
出版商: American Association of Physics Teachers
关键词: WKB APPROXIMATION;EIGENFUNCTIONS;HARMONIC OSCILLATORS;MORSE POTENTIAL;QUANTUM MECHANICS;PERTURBATION THEORY
数据来源: AIP
摘要:
A long‐standing problem and major shortcoming of semiclassical (WKB) bound‐state wave functions is their divergence at the classical turning points. Presently available regularization schemes are accurate but rather complicated. It is shown how finite wave functions can be simply obtained by reorganizing the WKB perturbation expansion in powers of ℏ and retaining appropriate higher‐order terms. The wave functions obtained by this method are compared with exactly known ones for the harmonic‐oscillator and Morse potentials.
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