Intruder state
id:
intruder-state-209-3835962
title:
Intruder state
text:
In quantum and theoretical chemistry, an intruder state is a particular situation arising in perturbative evaluations, where the energy of the perturbers is comparable in magnitude to the energy associated to the zero order wavefunction. In this case, a divergent behavior occurs, due to the nearly zero denominator in the expression of the perturbative correction. Multi-reference wavefunction methods are not immune. There are ways to identity them. The natural orbitals of the perturbation expansi
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Intruder_state
date created:
2006-03-26T20:48:31Z
date modified:
2024-09-11T15:36:41Z
main entity:
{"identifier":"Q16976894","url":"https://www.wikidata.org/entity/Q16976894"}
image:
fields total:
13
integrity:
14