Abstract
We proposed in Ref. [J. Phys. B 39, 13120 (2019)] a way to improve energy density functionals in the density functional theory based on the combination of the inverse Kohn-Sham method and the density functional perturbation theory. In this proceeding, we mainly focus on the results for the Ar and Kr atoms.
Highlights
The density functional theory (DFT) is one of the most successful approaches to the calculation of the ground-state properties of the quantum many-body problems including nuclear systems [1, 2, 3, 4]
In Ref. [5], we proposed a novel way to improve energy density functionals (EDFs) based on the combination of the inverse Kohn-Sham (IKS) method [6, 7] and the density functional perturbation theory (DFPT) [8, 9, 10, 11], the so-called IKS-DFPT method
The Wigner-Seitz radii rs calculated in the functional before and after the IKS-DFPT and the target one rstarget for Kr are shown as a functions of r in Fig. 2 with the dot-dashed, dashed, and solid lines, respectively
Summary
The density functional theory (DFT) is one of the most successful approaches to the calculation of the ground-state properties of the quantum many-body problems including nuclear systems [1, 2, 3, 4]. Where T0 is the Kohn-Sham (KS) kinetic energy, Vext is the external field, and EH [ρ] and Exc [ρ] are the Hartree and exchange-correlation energy density functionals (EDFs), respectively [1, 2].
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