Gluons in Two-Color QCD at High Baryon Density
V. G. Bornyakov, R. N. Rogalyov
TL;DR
This study investigates how gluon propagators in two-color QCD change with temperature and baryon density, revealing distinct behaviors of electric and magnetic components at different conditions.
Contribution
It provides the first lattice QCD analysis of gluon propagators in SU(2) at finite density and temperature, highlighting their dependence on chemical potential.
Findings
Longitudinal propagator decreases with chemical potential.
Transverse propagator increases at low temperature with chemical potential.
Electric and magnetic interactions show contrasting behaviors.
Abstract
Landau gauge longitudinal and transverse gluon propagators are studied in lattice QCD with gauge group 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 MeV and does not depend on it at higher temperatures. The relative strength of chromoelectric and chromomagnetic interactions is also discussed.
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