Confinement of Color: Recent Progress

TL;DR

This paper reviews recent advances in understanding QCD confinement, emphasizing the role of dual superconductivity and the nature of the deconfining phase transition in two-flavor QCD.

Contribution

It demonstrates that dual superconductivity is an intrinsic property of the QCD vacuum, regardless of abelian projection choice, and investigates the deconfining transition in two-flavor QCD.

Findings

Dual superconductivity of the vacuum is intrinsic and projection-independent.

The order of the deconfining phase transition in Nf=2 QCD is analyzed.

Progress made in understanding confinement mechanisms in QCD.

Abstract

Recent progress done in Pisa on the subject is presented. It is shown that dual superconductivity of the vacuum or absence of it is an intrinsic property of QCD vacuum, independent of the choice of the abelian projection. The order of the deconfining phase transition in $N_f=2$ QCD is studied as a key to understand the mechanism of confinement.