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Second-Quantization Formalism for Geminals

Vladimir Kvasnicka ; Department of Mathematics, Faculty of Chemistry, Slovak Technical University, 812 37 Bratislava, Czechoslovakia


Puni tekst: engleski pdf 8.732 Kb

str. 1643-1660

preuzimanja: 471

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Sažetak

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.

Ključne riječi

Hrčak ID:

194049

URI

https://hrcak.srce.hr/194049

Datum izdavanja:

21.5.1985.

Posjeta: 902 *