Croatica Chemica Acta, Vol. 66 No. 1, 1993.
Izvorni znanstveni članak
Handling Overlap as a Perturbation
István Mayer
; Central Research Institute for Chemistry of the Hungarian Academy of Sciences, H-1525 Budapest, P.O.Box 17, Hungary
Péter R. Surján
; Laboratory for Theoretical Chemistry, Eötvös University, H-1518 Budapest 112, P.O. Box 32, Hungary
Sažetak
The off-diagonal part of the overlap matrix (appearing in the right hand side of a secular equation written down in a non-orthogonal metric) is handled as a perturbation. As this perturbation is energy- and state-dependent, one has to use the nonlinear Rayleigh-Schrödinger perturbation theory. The state-dependence of the perturbation causes the theory to be also non-Her- mitian.
Ključne riječi
Hrčak ID:
137102
URI
Datum izdavanja:
1.6.1993.
Posjeta: 975 *