4.4 Article

Model nuclear energy density functionals derived fromab initiocalculations

出版社

IOP PUBLISHING LTD
DOI: 10.1088/1361-6471/ab8d8e

关键词

nuclear density functional theory; ab initiomethods; Green functions; statistical methods

资金

  1. STFC [ST/M006433/1, ST/P003885/1]
  2. Surrey's STFC [ST/P005314/1, ST/L005816/1]
  3. Polish National Science Centre [2018/31/B/ST2/02220]
  4. BIS National E-infrastructure capital Grant [ST/K001590/1]
  5. STFC capital Grants [ST/H008861/1, ST/H00887X/1]
  6. STFC DiRAC Operations Grant [ST/K00333X/1]
  7. STFC [ST/T001550/1, ST/P003885/1, ST/L000636/1, ST/T001348/1, ST/T001569/1, ST/R001014/1, ST/P003400/1, ST/V002384/1, ST/V002376/1, ST/M006948/1, ST/M007073/1, ST/S003916/1, ST/S003762/1, ST/K00333X/1, ST/R000832/1, ST/V002635/1, ST/T00049X/1, ST/M007618/1, ST/R001049/1, ST/J005673/1, ST/P000673/1, ST/P002447/1, ST/T001372/1, ST/R00689X/1, ST/M006433/1, ST/M007006/1, ST/M007065/1] Funding Source: UKRI

向作者/读者索取更多资源

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.

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