Croatica Chemica Acta, Vol. 57 No. 6, 1984.
Original scientific paper
Second-Quantization Formalism for Geminals
Vladimir Kvasnicka
; Department of Mathematics, Faculty of Chemistry, Slovak Technical University, 812 37 Bratislava, Czechoslovakia
Abstract
A method of constructing second-quantization formalism on
a set of orthonormal geminals (two-particle antisymmetric functions)
is described. Instead of using an initial set of creation and
annihilation operators with nontrivial commutation rules, the so-.
-called ideal creation and annihilation operators, satisfying elementary
Bose commutation rules, are used. The resulting Hamiltonian
and an arbitrary observable can be uniquely expressed in
terms of these ideal operators, playing now a role of dynamic
variables. In order to simplify the evaluation of such ideal operators,
a modified version of Feynman-Goldstone diagrammatic
technique is used.
Keywords
Hrčak ID:
194049
URI
Publication date:
21.5.1985.
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