Strong-interaction matter under extreme conditions from chiral quark models with nonlocal separable interactions

TL;DR

This paper reviews nonlocal NJL-like chiral quark models with separable interactions, focusing on their application to hadronic and quark matter under extreme conditions, including phase transitions, magnetic fields, and astrophysical objects.

Contribution

It provides a comprehensive overview of nonlocal chiral quark models and their predictions for matter under extreme conditions, highlighting new insights into phase transitions and astrophysical applications.

Findings

Predictions for hadron properties in vacuum

Insights into deconfinement and chiral restoration transitions

Analysis of effects of magnetic fields and inhomogeneous phases

Abstract

We review the current status of the research on effective nonlocal NJL-like chiral quark models with separable interactions, focusing on the application of this approach to the description of the properties of hadronic and quark matter under extreme conditions. The analysis includes the predictions for various hadron properties in vacuum, as well as the study of the features of deconfinement and chiral restoration phase transitions for systems at finite temperature and/or density. We also address other related subjects, such as the study of phase transitions for imaginary chemical potentials, the possible existence of inhomogeneous phase regions, the presence of color superconductivity, the effects produced by strong external magnetic fields, and the application to the description of compact stellar objects.