Gluon propagators in QC$_2$D at high baryon density
Vitaly Bornyakov, Andrey Kotov, Alexander Nikolaev, Roman Rogalyov
TL;DR
This study investigates how gluon propagators in SU(2) lattice QCD vary with quark chemical potential at zero temperature, revealing significant dependence that challenges previous results.
Contribution
It provides new lattice QCD data showing the chemical potential dependence of gluon propagators, contradicting earlier studies.
Findings
Both transverse and longitudinal gluon propagators depend strongly on chemical potential.
The results challenge previous assumptions of independence at high density.
The study uses Landau-gauge lattice simulations for SU(2) gauge group.
Abstract
We study the transverse and longitudinal gluon propagators in the Landau-gauge lattice QCD with gauge group at nonzero quark chemical potential and zero temperature. We show that both propagators demonstrate substantial dependence on the quark chemical potential. This observation contradicts to earlier findings by other groups.
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