Vacuum structure and chiral symmetry breaking in strong magnetic fields for hot and dense quark matter

TL;DR

This paper studies how strong magnetic fields affect chiral symmetry breaking and the equation of state in hot, dense quark matter using an extended NJL model, with implications for neutron star physics.

Contribution

It introduces a self-consistent approach to analyze chiral symmetry breaking in magnetic fields within a 3-flavor NJL model including the KMT term, and derives the equation of state for strange quark matter.

Findings

Chiral symmetry breaking is significantly influenced by magnetic fields.

The derived equation of state is relevant for proto-neutron star conditions.

Self-consistent mass gap solutions are obtained under various temperature and density conditions.

Abstract

We investigate chiral symmetry breaking in strong magnetic fields at finite temperature and densities in a 3 flavor Nambu Jona Lasinio (NJL) model including the Kobayashi Maskawa t-Hooft (KMT) determinant term, using an explicit structure for the ground state in terms of quark antiquark condensates. The mass gap equations are solved self consistently and are used to compute the thermodynamic potential. We also derive the equation of state for strange quark matter in the presence of strong magnetic fields which could be relevant for proto-neutron stars. ~