Effects of Dense Quark Matter on Gluon Propagators in Lattice QC$_2$D

Understand

The transverse and longitudinal gluon propagators in the Landau gauge are studied in the two-color lattice QCD at nonzero quark chemical potential $\mu_q$.

• Parameterization of the momentum dependence of the propagators is provided for all values of chemical potential under study.
• We find that the longitudinal propagator is infrared suppressed at nonzero $\mu_q$ with suppression increasing with increasing $\mu_q$.
• The transverse propagator dependence on $\mu_q$ was found to be opposite: it is enhanced at large $\mu_q$.