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...
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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 |
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paper:paper_00296341_v35_n2_p410_MacDowell |
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paper:paper_00296341_v35_n2_p410_MacDowell2023-06-08T14:55:33Z 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 up to any order. The relation between both definitions is given. © 1965 Società Italiana di Fisica. 1965 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 |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
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 up to any order. The relation between both definitions is given. © 1965 Società Italiana di Fisica. |
| title |
Perturbation expansion for bond orders and the commutator [H, S] |
| spellingShingle |
Perturbation expansion for bond orders and the commutator [H, S] |
| title_short |
Perturbation expansion for bond orders and the commutator [H, S] |
| title_full |
Perturbation expansion for bond orders and the commutator [H, S] |
| title_fullStr |
Perturbation expansion for bond orders and the commutator [H, S] |
| title_full_unstemmed |
Perturbation expansion for bond orders and the commutator [H, S] |
| title_sort |
perturbation expansion for bond orders and the commutator [h, s] |
| publishDate |
1965 |
| url |
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 |
| _version_ |
1768544991600181248 |