Quark Matter in a Strong Magnetic Background

TL;DR

This paper explores how strong magnetic fields influence quark matter, focusing on chiral symmetry, deconfinement, and magnetic susceptibility using chiral models, and compares these findings with other research results.

Contribution

It provides a comprehensive analysis of magnetic effects on quark matter using multiple chiral models and compares results across different studies.

Findings

Magnetic fields affect chiral symmetry restoration and deconfinement.

Calculated magnetic susceptibility of the chiral condensate.

Analyzed quark polarization at zero temperature.

Abstract

In this chapter, we discuss several aspects of the theory of strong interactions in presence of a strong magnetic background. In particular, we summarize our results on the effect of the magnetic background on chiral symmetry restoration and deconfinement at finite temperature. Moreover, we compute the magnetic susceptibility of the chiral condensate and the quark polarization at zero temperature. Our theoretical framework is given by chiral models: the Nambu-Jona-Lasinio (NJL), the Polyakov improved NJL (or PNJL) and the Quark-Meson (QM) models. We also compare our results with the ones obtained by other groups.