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On Löwdin's projection operators for angular momentum. I
Author(s) -
Crossley Richard J. S.
Publication year - 1977
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560110605
Subject(s) - angular momentum , projection (relational algebra) , angular momentum operator , product (mathematics) , physics , total angular momentum quantum number , angular momentum coupling , mathematics , classical mechanics , geometry , algorithm
Löwdin has presented his angular momentum projection operators in two forms, the sum form deduced from the product form. A direct proof of the sum form is presented here, together with a brief account of application of the technique to the pd configuration.