Induced color charge and quark propagation at Polyakov’s loop background

  • V. Skalozub Oles Honchar Dnipro National University, Dnipro, Ukraine
  • A. Turinov Oles Honchar Dnipro National University, Dnipro, Ukraine
Keywords: quark-gluon plasma, Polyakov loop, color symmetry, induced color charges, Schwinger-Dyson equation for quarks


In quark­gluon plasma, the presence of the A0 (Polyakov loop (PL)) condensate results in the color Z(3) symmetry breaking and the Furry theorem violation. Due to these peculiarities, new phenomena ­ the induced color charges and other even­number diagram effects ­ are realized. Using the ξ gauge, we ob­tain the ξ­-independent two­loop effective potential W (A0classical) expressed in terms of the PL. Its minimum position detects the value of the condensate. We calculate the one­loop tadpole diagram with one gluon line and the induced color charges Qind. Having these, we investigate the influence of the color charges on quark propagation and derive and partially investigate the contribution of them into the Schwinger­-Dyson equation for quarks. It is found that the presence of Qindeffectively increases the strength of the A0 potential acting on colored particles in the plasma.