Recent progress in global optimizations of covariant energy density functionals

TL;DR

This paper reviews recent advances in the global optimization of covariant energy density functionals within covariant density functional theory, highlighting new methods that improve accuracy and computational efficiency for calculating nuclear binding energies.

Contribution

It introduces an anchor-based optimization approach enabling efficient and accurate global optimizations of covariant energy density functionals in large fermionic bases.

Findings

New optimization method reduces computational cost

Accurate estimation of global calculation errors

Enhanced extrapolation to infinite fermionic basis

Abstract

The recent progress on global optimizations of covariant energy density functionals (CEDFs) and global calculations of binding energies within the covariant density functional theory (CDFT) has been analyzed and reviewed. Recently developed anchor-based optimization approach of Ref. [1] allows global optimizations of CEDFs at a reasonable numerical cost. Moreover, it permits such optimizations in a very large fermionic basis with a proper extrapolation to an infinite one. This allows to accurately estimate global calculation errors due to use of truncated fermionic basis and neglect of some contributions to binding energies (such as total electron binding energy)