Monopole condensation in two-flavour Adjoint QCD

TL;DR

This paper investigates the deconfining and chiral transitions in two-flavour adjoint QCD, showing that confinement and chiral symmetry are governed by different degrees of freedom, with the deconfining transition being first order and the chiral transition a crossover.

Contribution

It provides a detailed analysis of the separate nature of deconfinement and chiral symmetry restoration in adjoint QCD using multiple order parameters.

Findings

Deconfining transition is first order.

Chiral transition is a crossover.

Order parameters for confinement are unaffected by chiral transition.

Abstract

In QCD with adjoint fermions (aQCD) the deconfining transition takes place at a lower temperature than the chiral transition. We study the two transitions by use of the Polyakov Loop, the monopole order parameter and the chiral condensate. The deconfining transition is first order, the chiral is a crossover. The order parameters for confinement are not affected by the chiral transition. We conclude that the degrees of freedom relevant to confinement are different from those describing chiral symmetry.