Second-Quantization Formalism for Geminals
نویسندگان
چکیده
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.
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تاریخ انتشار 2018