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The Antisymmetrized Geminal Power, a Simple Correlated Wave Function for Chemical Bonding
Author(s) -
Linderberg Jan
Publication year - 1980
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.198000009
Subject(s) - geminal , chemistry , simple (philosophy) , wave function , consistency (knowledge bases) , moment (physics) , function (biology) , statistical physics , chemical bond , random phase approximation , computational chemistry , chemical physics , quantum mechanics , physics , stereochemistry , mathematics , philosophy , geometry , epistemology , evolutionary biology , biology , organic chemistry
The pertinent features of the antisymmetrized geminal power are brought out with a view of describing the chemical bond and the electronic properties of molecules. It is demonstrated that for certain hamiltonians it is consistent with a response function derived from a simple moment expansion characteristic of the random phase approximation. Deficiencies with regard to “size consistency” are pointed out. Simple examples are analyzed in order to familiarize the reader with the nature of the approximations.