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Density Matrix Expansion for Low-Momentum Interactions

2008/11/26 by S. K. Bogner, R. J. Furnstahl, L. Platter · 1 citation
Physics and Astronomy · #nucl-th #cond-mat.other

paper · pdf · doi:10.1140/epja/i2008-10695-1

50 pages, 10 figures

arxiv created 2008/11/26 · arxiv updated 2009/12/01

Abstract

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 Kohn-Sham density functional theory.

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