Gluon propagators and center vortices at finite temperature

TL;DR

This paper investigates how center vortices affect the infrared behavior of gluons in the deconfined phase of QCD, revealing their crucial role in magnetic gluon properties at finite temperature.

Contribution

It demonstrates that removing center vortices significantly suppresses the magnetic gluon propagator, highlighting their importance in nonperturbative magnetic properties of the quark-gluon plasma.

Findings

Magnetic gluon propagator is suppressed after vortex removal

Electric gluon propagator remains unaffected by vortex removal

Center vortices are key to nonperturbative magnetic properties

Abstract

We study influence of center vortices on infrared properties of gluons in the deconfinement phase of quenched QCD. We observe a significant suppression of the magnetic component of the gluon propagator in the low-momentum region after the vortices are removed from the gluon configurations. The propagator of the electric gluon stays almost unaffected by the vortex removal. Our results demonstrate that the center vortices are responsible for important nonperturbative properties of the magnetic component of the quark-gluon plasma.