Lattice computation of the quark propagator in Landau gauge at finite temperature

TL;DR

This paper presents lattice computations of the quark propagator at finite temperature in Landau gauge, revealing a strong link between deconfinement and chiral symmetry restoration across different temperatures.

Contribution

It provides the first detailed lattice analysis of the quark propagator's form factors across temperatures, connecting deconfinement and chiral symmetry restoration.

Findings

Quark propagator form factors vary significantly across the deconfinement transition.

Results indicate a strong correlation between quark and gluon deconfinement.

Chiral symmetry restoration is observed above the critical temperature.

Abstract

We report on the lattice computation of the quark propagator at finite temperature in the Landau gauge, using quenched gauge configurations. The propagator form factors are computed for various temperatures, above and below the gluon deconfinement temperature $T_c$, and for all the Matsubara frequencies. Our results suggest a strong connection between quark and gluon deconfinement and chiral symmetry restoration above $T_c$.