Formal Rayleigh-Schrödinger perturbation theory for both degenerate and non-degenerate energy states

Formal Rayleigh-Schrödinger perturbation theory for both degenerate and non-degenerate energy states

Using the Rayleigh‐Schrödinger perturbation formalism, expressions are obtained for the nth order energy and the nth order wave function. No restrictions are placed on the degeneracy of the state or the order of perturbation in which the degeneracies are resolved. By the use of suitable operators, t...

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Veröffentlicht in:International journal of quantum chemistry 1969-09, Vol.3 (5), p.731-748
1. Verfasser: Hirschfelder, Joseph O.
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container_title International journal of quantum chemistry
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creator Hirschfelder, Joseph O.
description Using the Rayleigh‐Schrödinger perturbation formalism, expressions are obtained for the nth order energy and the nth order wave function. No restrictions are placed on the degeneracy of the state or the order of perturbation in which the degeneracies are resolved. By the use of suitable operators, the formulae are expressed in compact form.
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title Formal Rayleigh-Schrödinger perturbation theory for both degenerate and non-degenerate energy states
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