Brillouin-Wigner Perturbation Theory as a Possible more Effective Alternative to Many-Body Rayleigh-Schrodinger Perturbation Theory and Coupled Cluster Theory

1 January 1995

journal article
Published by Institute of Organic Chemistry & Biochemistry in Collection of Czechoslovak Chemical Communications

Vol. 60 (9) , 1419-1428
https://doi.org/10.1135/cccc19951419

Abstract

Brillouin-Wigner perturbation theory is revisited using the Lippmann-Schwinger equation and applied to the H₂O molecule. The results obtained are examined from the view-point of the development of practical computational methods.

Keywords

PERTURBATION THEORY
BRILLOUIN WIGNER
WIGNER PERTURBATION
H2O MOLECULE
LIPPMANN SCHWINGER
SCHWINGER EQUATION

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