München 2019 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 37: Structure and Dynamics of Nuclei VII
HK 37.6: Vortrag
Mittwoch, 20. März 2019, 15:30–15:45, HS 16
Energy-density functionals from local chiral interactions — •Lars Zurek1,2, Eduardo Antonio Coello Pérez1,2, and Achim Schwenk1,2,3 — 1Institut für Kernphysik, Technische Universität Darmstadt — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH — 3Max-Planck-Institut für Kernphysik, Heidelberg
We employ the density-matrix expansion introduced by Negele and Vautherin and further developed by Gebremariam et al. in order to rewrite one-body density matrices in terms of local densities and their derivatives. The resulting approximations for the density matrices are applied to calculate energy-density functionals at the Hartree-Fock level based on local interactions derived from chiral effective field theory. The accuracy of this approach is investigated and analyzed for various approximations and choices in the density-matrix expansion.
* Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 279384907 - SFB 1245.