A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Salvioni, G.; Dobaczewski, J.; Barbieri, C.; Carlsson, G.; Idini, A.; Pastore, A.
Lehti tai sarja: Journal of Physics G: Nuclear and Particle Physics
ISSN: 0954-3899
eISSN: 1361-6471
Julkaisuvuosi: 2020
Volyymi: 47
Lehden numero: 8
Artikkelinumero: 085107
Kustantaja: Institute of Physics
Julkaisumaa: Britannia
Julkaisun kieli: englanti
DOI: https://doi.org/10.1088/1361-6471/ab8d8e
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/71519
Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/2002.01903
Tiivistelmä
G: Nucl. Part. Phys. 43 04LT01) to derive coupling constants of the Skyrme
energy density functional (EDF) from ab initio Hamiltonian. By perturbing the
ab initio Hamiltonian 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 an ab
initio-equivalent Skyrme EDF. We find that the resulting functional describes
properties of atomic nuclei and infinite nuclear matter quite poorly. This may
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.
YSO-asiasanat: ydinfysiikka; tiheysfunktionaaliteoria; tilastomenetelmät
Vapaat asiasanat: nuclear density functional theory; ab initio methods; Green functions; statistical methods
Liittyvät organisaatiot
OKM-raportointi: Kyllä
Raportointivuosi: 2020
JUFO-taso: 2