Model nuclear energy density functionals derived from ab initio calculations
(2020) In Journal of Physics G: Nuclear and Particle Physics 47(8).- Abstract
We present the first application of a new approach, proposed in (2016 J. Phys. 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 point to the necessity of building up the ab initio-equivalent functionals from more sophisticated generators. However, we... (More)
We present the first application of a new approach, proposed in (2016 J. Phys. 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 point to the necessity of building up the ab initio-equivalent functionals from more sophisticated generators. However, we also indicate that the current precision of the ab initio calculations may be insufficient for deriving meaningful nuclear EDFs.
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- author
- Salvioni, G. ; Dobaczewski, J. ; Barbieri, C. ; Carlsson, G. LU ; Idini, A. LU and Pastore, A.
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ab initio methods, Green functions, nuclear density functional theory, statistical methods
- in
- Journal of Physics G: Nuclear and Particle Physics
- volume
- 47
- issue
- 8
- article number
- 085107
- publisher
- IOP Publishing
- external identifiers
-
- scopus:85089014978
- ISSN
- 0954-3899
- DOI
- 10.1088/1361-6471/ab8d8e
- language
- English
- LU publication?
- yes
- id
- ea366d9e-43c5-4c76-93d8-71d34f645c62
- date added to LUP
- 2020-08-12 10:04:07
- date last changed
- 2022-04-19 00:07:55
@article{ea366d9e-43c5-4c76-93d8-71d34f645c62, abstract = {{<p>We present the first application of a new approach, proposed in (2016 J. Phys. 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 point to the necessity of building up the ab initio-equivalent functionals from more sophisticated generators. However, we also indicate that the current precision of the ab initio calculations may be insufficient for deriving meaningful nuclear EDFs. </p>}}, author = {{Salvioni, G. and Dobaczewski, J. and Barbieri, C. and Carlsson, G. and Idini, A. and Pastore, A.}}, issn = {{0954-3899}}, keywords = {{ab initio methods; Green functions; nuclear density functional theory; statistical methods}}, language = {{eng}}, number = {{8}}, publisher = {{IOP Publishing}}, series = {{Journal of Physics G: Nuclear and Particle Physics}}, title = {{Model nuclear energy density functionals derived from ab initio calculations}}, url = {{http://dx.doi.org/10.1088/1361-6471/ab8d8e}}, doi = {{10.1088/1361-6471/ab8d8e}}, volume = {{47}}, year = {{2020}}, }