Chiral transition and deconfinement in N_f = 2 QCD

TL;DR

This paper investigates the relationship between chiral symmetry restoration and deconfinement in two-flavor QCD, finding they occur simultaneously and exhibit characteristics of a first order phase transition.

Contribution

It introduces a disorder parameter based on magnetic monopole condensation to study the phase transition in N_f=2 QCD, revealing the nature and coincidence of deconfinement and chiral transitions.

Findings

Deconfinement and chiral transition occur simultaneously.

The transition is consistent with a first order phase transition.

Magnetic monopole condensation serves as an effective disorder parameter.

Abstract

The transition is studied by means of a disorder parameter detecting condensation of magnetic monopoles in the vacuum. The deconfining transition is found to coincide with the chiral transition and the susceptibility \rho, related to the disorder parameter, is consistent with a first order phase transition.