Journal Article

PreJuSER-55151

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Density matrix functional theory that includes pairing correlations

Krewald, S.FZJ* ; Soubbotin, V. B. ; Tselyaev, V. I. ; Vinas, X.

2006
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/11107  doi:10.1103/PhysRevC.74.064310

Abstract: The extension of 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 conserved exactly. The connection with Hartree-Fock-Bogoliubov (HFB) theory is discussed, and the method of quasilocal reduction of the nonlocal theory is also described. This quasilocal reduction allows equations of motion to be obtained which are much simpler for numerical solution than the equations corresponding to the nonlocal case. Our theory is applied to the study of some even Sn isotopes, and the results are compared with those obtained in the standard HFB theory and with the experimental ones.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 3 (Theoretische Kernphysik) (IKP-TH)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2006

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