Preliminary results on deconfinement phase transition in full QCD

Abstract

We explore the profiles of the flux tube connecting a quark and an antiquark in high
temperature SU(3) lattice gauge theory in close vicinity to the critical temperature of the
phase transition. In this work, we consider the more realistic case of the flux tube with
dynamical quarks, extending the previous study to SU(3) gauge group and making use of
the Gradient flow method in smoothing procedure for noise reduction. The profiles of the
chromoelectric and chromomagnetic field strengths in the flux tube have been measured
from Polyakov loop-plaquette correlations using the highly improved staggered quark
(HISQ) action on a lattice with temporal extent.