Energy functional based on natural orbitals and occupancies for static properties of nuclei

Abstract

The possibility to use functionals of occupation numbers and natural orbitals for interacting fermions is discussed as an alternative to multi-reference energy density functional method. An illustration based on the two-level Lipkin model is discussed.Comment: Proceeding of the conference "Nuclear Structure and Dynamics", Dubrovnik, Croatia, 4-8 May, 200