Gluons in Two-Color QCD at High Baryon Density

Abstract

Landau gauge longitudinal and transverse gluon propagators are studied in lattice QCD with gauge group $SU(2)$ at varying temperature and quark density. In particular, it is found that the longitudinal propagator decreases with increasing quark chemical potential at all temperatures under study, whereas the transverse propagator increases with increasing quark chemical potential at $T<200$ MeV and does not depend on it at higher temperatures. The relative strength of chromoelectric and chromomagnetic interactions is also discussed.

arXiv comment14 pages, 4 figures; to appear in the proceedings of the 8th International Conference on New Frontiers in Physics (ICNFP2019)

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• Gluon Propagators in $2+1$ Lattice QCD with Nonzero Isospin Chemical Potential
• QCD phase diagram from the gluon propagator at finite temperature and density
• Topological Susceptibility in the Superconductive Phases of Quantum Chromodynamics: a Dyson-Schwinger Perspective