Dense two-color QCD from Dyson-Schwinger equations
Romain Contant, Markus Q. Huber
Abstract
We investigate quantum chromodynamics with two colors at nonvanishing density using Dyson-Schwinger equations. Lattice methods do not have a complex action problem in this theory. Thus, we can benchmark our results and the effect of truncations directly by comparing with the corresponding lattice results. We do so for the gluon propagator, the chiral condensate, and the quark number density and test variations of the employed truncation to improve the agreement. Finally, we compare the effect of a truncation on the chiral and confinement/deconfinement transitions in the phase diagrams of QCD and QCD with the gauge groups $SU(2)$ and ${G}_{2}$.
Topics & Concepts
DeconfinementQuantum chromodynamicsPhysicsPropagatorLattice QCDLattice (music)Truncation (statistics)QuarkGauge theoryGluonMathematical physicsColor confinementParticle physicsQCD vacuumQuantum electrodynamicsMathematicsStatisticsAcousticsQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions Research