dorsal/arxiv
View SchemaDensity Matrix Functional Theory with account of pairing correlations
| Authors | S. Krewald, V. B. Soubbotin, V. I. Tselyaev, X. Vinas |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0412018 |
| URL | https://arxiv.org/abs/nucl-th/0412018 |
Abstract
The extension of the density functional theory (DFT) to include pairing correlations without formal violation of the particle-number conservation condition is described. This version of the theory can be considered as a foundation of the application of existing DFT plus pairing approaches to atoms, molecules, ultracooled and magnetically trapped atomic Fermi gases, and atomic nuclei where the number of particles is exactly conserved. The connection with the Hartree-Fock-Bogoliubov theory is discussed. The method of the quasilocal reduction of the nonlocal theory is described. This quasilocal reduction allows to obtain equations of motion which are much more simple for the numerical solution than the equations corresponding to the nonlocal case.
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"abstract": "The extension of the density functional theory (DFT) to include pairing\ncorrelations without formal violation of the particle-number conservation\ncondition is described. This version of the theory can be considered as a\nfoundation of the application of existing DFT plus pairing approaches to atoms,\nmolecules, ultracooled and magnetically trapped atomic Fermi gases, and atomic\nnuclei where the number of particles is exactly conserved. The connection with\nthe Hartree-Fock-Bogoliubov theory is discussed. The method of the quasilocal\nreduction of the nonlocal theory is described. This quasilocal reduction allows\nto obtain equations of motion which are much more simple for the numerical\nsolution than the equations corresponding to the nonlocal case.",
"arxiv_id": "nucl-th/0412018",
"authors": [
"S. Krewald",
"V. B. Soubbotin",
"V. I. Tselyaev",
"X. Vinas"
],
"categories": [
"nucl-th"
],
"title": "Density Matrix Functional Theory with account of pairing correlations",
"url": "https://arxiv.org/abs/nucl-th/0412018"
},
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