Finite-temperature infinite matter with effective-field-theory-inspired energy-density functionals

Abstract Finite-temperature infinite matter is analyzed with the recently introduced effective-field-theory(EFT)-inspired YGLO (Yang–Grasso–Lacroix–Orsay) and ELYO (extended Lee–Yang, Orsay) functionals, which are designed to describe very low-density regimes in symmetric (YGLO) pure neutron (YGLO ELYO) matter. The article deals aims verify whether use of these functionals allows us correctly incorporate finite-temperature effects. We compare our results for some relevant thermodynamical quantities corresponding ones computed a chosen reference ab-initio model, namely many-body-perturbation-theory scheme. validate reliability both EFT-inspired at least rather low densities not too high temperatures we discuss effects related effective mass. conclude that, present stage, functional, having higher mass around saturation (closer values), properties more satisfactorily, better agreement predictions up temperatures, compared YGLO.