Quark Confinement and Deconfinement Transition in Large Flavor QCD

TL;DR

This paper introduces a new criterion for quark confinement and deconfinement in large flavor QCD using an effective theory, revealing a possible conformal phase and explaining low-energy phenomena like Abelian dominance.

Contribution

It proposes a novel criterion for confinement/deconfinement based on an effective theory, applied to large flavor QCD to explore its phase structure and the potential conformal phase.

Findings

Effective theory explains Abelian dominance in low-energy QCD

Criterion suggests existence of a conformal phase in large flavor QCD

Phase diagram indicates transition between confined and conformal phases

Abstract

We give a new criterion of quark confinement/deconfinement by deriving a low-energy effective theory of QCD. The effective theory can explain Abelian dominance in low-energy physics of QCD, especially, quark confinement. Finally, we apply the above criterion to the large flavor QCD and discuss its phase structure. The result suggests the existence of conformal phase.