Going beyond the self-consistent mean-field with the symmetry-restored generator coordinate method
From single-reference toward multi-reference energy density functional theory
Université Bordeaux 1, CNRS/IN2P3, Centre d'Études Nucléaires de Bordeaux Gradignan, UMR 5797, Chemin du Solarium, BP. 120, 33175 Gradignan, France
Starting from successful self-consistent mean-field models, this paper discusses why and how to go beyond the mean field approximation. To include long-range correlations from fluctuations in collective degrees of freedom, one has to consider symmetry restoration and configuration mixing, which give access to ground-state correlations and spectroscopy.
© EDP Sciences, Springer-Verlag, 2008