A1 Journal article (refereed)
Model nuclear energy density functionals derived from ab initio calculations (2020)


Salvioni, G., Dobaczewski, J., Barbieri, C., Carlsson, G., Idini, A., & Pastore, A. (2020). Model nuclear energy density functionals derived from ab initio calculations. Journal of Physics G: Nuclear and Particle Physics, 47(8), Article 085107. https://doi.org/10.1088/1361-6471/ab8d8e


JYU authors or editors


Publication details

All authors or editors: Salvioni, G.; Dobaczewski, J.; Barbieri, C.; Carlsson, G.; Idini, A.; Pastore, A.

Journal or series: Journal of Physics G: Nuclear and Particle Physics

ISSN: 0954-3899

eISSN: 1361-6471

Publication year: 2020

Volume: 47

Issue number: 8

Article number: 085107

Publisher: Institute of Physics

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1088/1361-6471/ab8d8e

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/71519

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2002.01903


Abstract

We present the first application of a new approach, proposed in (2016J.Phys.G:Nucl.Part.Phys.4304LT01) to derive coupling constants of the Skyrme energy density functional (EDF) fromab initioHamiltonian. By perturbing theab initioHamiltonian with several functional generators defining the Skyrme EDF, we create a set of metadata that is then used to constrain the coupling constants of the functional. We use statistical analysis to obtain such anab initio-equivalent Skyrme EDF. We find that the resulting functional describes properties of atomic nuclei and infinite nuclear matter quite poorly. This may point to the necessity of building up theab initio-equivalent functionals from more sophisticated generators. However, we also indicate that the current precision of theab initiocalculations may be insufficient for deriving meaningful nuclear EDFs.


Keywords: nuclear physics; density functional theory; statistical methods

Free keywords: nuclear density functional theory; ab initio methods; Green functions; statistical methods


Contributing organizations


Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 2


Last updated on 2021-02-08 at 10:19