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
