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- Intruder_state abstract "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-rerefence wavefunction methods are not immune. There are ways to identity them. The natural orbitals of the perturbation expansion are a useful diagnostic for detecting intruder state effects. Sometimes what appears to be an intruder state is simply a change in basis.".
- Intruder_state wikiPageID "4525469".
- Intruder_state wikiPageLength "3042".
- Intruder_state wikiPageOutDegree "5".
- Intruder_state wikiPageRevisionID "666486697".
- Intruder_state wikiPageWikiLink Category:Perturbation_theory.
- Intruder_state wikiPageWikiLink Category:Theoretical_chemistry.
- Intruder_state wikiPageWikiLink Perturbation_theory_(quantum_mechanics).
- Intruder_state wikiPageWikiLink Quantum_chemistry.
- Intruder_state wikiPageWikiLink Theoretical_chemistry.
- Intruder_state wikiPageWikiLinkText "intruder state".
- Intruder_state wikiPageUsesTemplate Template:Reflist.
- Intruder_state wikiPageUsesTemplate Template:Theoretical-chem-stub.
- Intruder_state subject Category:Perturbation_theory.
- Intruder_state subject Category:Theoretical_chemistry.
- Intruder_state hypernym Situation.
- Intruder_state type ProgrammingLanguage.
- Intruder_state type Mechanic.
- Intruder_state comment "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-rerefence wavefunction methods are not immune. There are ways to identity them.".
- Intruder_state label "Intruder state".
- Intruder_state sameAs Q16976894.
- Intruder_state sameAs m.0c74mt.
- Intruder_state sameAs Q16976894.
- Intruder_state wasDerivedFrom Intruder_state?oldid=666486697.
- Intruder_state isPrimaryTopicOf Intruder_state.