Perturbation expansion for bond orders and the commutator [H, S]
A perturbative expansion for Chirgwing and Coulson's and Löwdin's definitions of bond order is obtained, introducing explicitly the commutator [H, S]. Projection operator formalism is used in the development of the perturbation theory. Recurrence formulae are obtained for the corrections u...
| Publicado: |
1965
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00296341_v35_n2_p410_MacDowell http://hdl.handle.net/20.500.12110/paper_00296341_v35_n2_p410_MacDowell |
| Aporte de: |
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