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.

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

References in corpus (4)

• A refinement of the Gribov-Zwanziger approach in the Landau gauge: infrared propagators in harmony with the lattice results
• Indirect lattice evidence for the Refined Gribov-Zwanziger formalism and the gluon condensate $⟨A^2⟩$ in the Landau gauge
• Deconfinement in dense 2-color QCD
• Chiral and deconfinement transition from correlation functions: SU(2) vs. SU(3)

Cited by in corpus (4)

• When cold, dense quarks in 1+1 and 3+1 dimensions are not a Fermi liquid
• 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