Towards Density Functional Calculations from Nuclear Forces

Details Towards Density Functional Calculations from Nuclear Forces Towards Density Functional Calculations from Nuclear Forces

2004-03-02

arxiv.org/abs/nucl-th/0403011v1

Physics

Nuclear Physics

Nuclear Theory

10 pages, 2 figures, Invited talk at Hirschegg 2004, Probing Nuclei and Nucleons with Electrons and Photons

Scientific paper

We propose a method for microscopic calculations of nuclear ground-state properties in the framework of density functional theory. We discuss how the density functional is equivalent to the effective action for the density, thereby establishing a constructive framework for density functional calculations from nuclear forces. The presented approach starts from non-interacting nucleons in a background potential (a simple approximation for the mean field). The nuclear forces are then gradually turned on, while the background potential is removed. The evolution equation yields the ground-state energy and density of a system of interacting nucleons, including exchange-correlations beyond the RPA approximation. The method can start from non-local low momentum (V_{low k}) or chiral interactions.

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