Chiralspin symmetry and confinement

TL;DR

This paper investigates the chiralspin symmetry observed in lattice QCD at high temperatures, aiming to redefine it as a symmetry of free quarks to better understand the deconfinement transition.

Contribution

The paper proposes a redefinition of the chiralspin symmetry to make it compatible with free quark actions and deconfinement in QCD.

Findings

Redefinition of chiralspin symmetry consistent with free quark behavior

Insights into the symmetry's role in the deconfinement transition

Potential implications for high-temperature QCD studies

Abstract

Interesting lattice QCD simulations at high temperature in QCD and particular truncated studies have shown the emergence of an unexpected group symmetry, so called \textit{chiralspin}. However this is not a symmetry of the QCD action for free quarks, which makes unclear the transition to deconfinement at high temperature in QCD. Therefore we try to redefine this group so that is a symmetry of free quark action and it is consistent with the presence of deconfinement in QCD.