Inverse Magnetic Catalysis in hot quark matter within (P)NJL models

TL;DR

This paper explores how magnetic fields influence quark matter in NJL models, successfully reproducing both magnetic catalysis at low temperatures and inverse magnetic catalysis near the transition temperature.

Contribution

It introduces two approaches within NJL-type models with Polyakov Loop that simultaneously reproduce magnetic catalysis and inverse magnetic catalysis effects.

Findings

Models replicate inverse magnetic catalysis near transition temperature.

Models show magnetic catalysis at low temperatures.

Provides a unified framework for magnetic effects in quark matter.

Abstract

Apart from Magnetic Catalysis at low temperatures, recent LQCD studies have shown the opposite effect at temperatures near the transition region: instead of enhancing, the magnetic field suppresses the quark condensates (Inverse Magnetic Catalysis). In this paper, two approaches are discussed within NJL-type models with Polyakov Loop that reproduce both effects.