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Regular perturbations, Brillouin-Wigner expansion, and continued fractions

โœ Scribed by Graffi, S.


Book ID
121883884
Publisher
American Institute of Physics
Year
1974
Tongue
English
Weight
387 KB
Volume
15
Category
Article
ISSN
0022-2488

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Brillouin-Wigner perturbation theory and
โœ C. Laughlin; M. R. Woodward; A. T. Amos ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 340 KB

## Abstract A Brillouinโ€Wigner perturbation expansion is derived for the generalized eigenvalue equation (__F__~0~ + __F__~1~)ฮจ = ฮผ__A__ฮจ. The theory is applied through second order to calculate the groundโ€state energies of the helium atom and the hydrogen molecular ion. The results are compared wi