language: en

Instabilities in the Nuclear Energy Density Functional

M. Kortelainen and T. Lesinski
Department of Physics and Astronomy, University of Tennessee,
Knoxville, TN 37996, USA
Physics Division, Oak Ridge National Laboratory,
Oak Ridge, TN 37831, USA
E-mail: kortelainene@ornl.gov, tlesinsk@utk.edu

Abstract. In the field of Energy Density Functionals (EDF) used in nuclear structure and dynamics, one of the unsolved issues is the stability of the functional. Numerical issues aside, some EDFs are unstable with respect to particular perturbations of the nuclear ground-state density. The aim of this contribution is to raise questions about the origin and nature of these instabilities, the techniques used to diagnose and prevent them, and the domain of density functions in which one should expect a nuclear EDF to be stable.

[Instabilities in the Nuclear Energy Density Functional 2]