Density matrix expansion for low-momentum interactions
Artikel i vetenskaplig tidskrift, 2009

A first step toward a universal nuclear energy density functional based on low-momentum interactions is taken using the density matrix expansion (DME) of Negele and Vautherin. The DME is adapted for non-local momentum space potentials and generalized to include local three-body interactions. Different prescriptions for the three-body DME are compared. Exploratory results are given at the Hartree-Fock level, along with a roadmap for systematic improvements within an effective action framework for the Kohn-Sham density functional theory.

many-fermion system

nuclear-matter

hartree-fock calculations

mean-field

functional theory

finite nuclei

ground-state energy

model

legendre transformation

effective-field theory

Författare

S. K. Bogner

R. J. Furnstahl

European Physical Journal A

1434-6001 (ISSN) 1434-601X (eISSN)

Vol. 39 219-241

Ämneskategorier

Subatomär fysik