Thermal quarks and Polyakov loops in two-color dense QCD
arXiv:2509.20874 · doi:10.3390/universe11110357
Abstract
We study confinement and deconfinement in dense two color QCD by analyzing the dynamics of thermal quarks and gluons. The Polyakov loop is used as a probe of the relevant thermal excitations, distinguishing quark and hadron dominated regimes in dense matter. To describe the Polyakov loop, we adopt both lattice informed phenomenological models and the massive Yang Mills framework. After calibrating these models at zero density, we investigate in medium modifications of the Polyakov loops and gluon propagators at finite temperature and density. Diquark gaps control the screening at zero temperature, whereas the screening due to thermal quarks is sensitive to the Polyakov loop. Inclusion of the Polyakov loop helps to reproduce lattice data at low temperature, suggesting that thermal excitations are predominantly hadronic rather than uncorrelated quarks.
29 pages, 15 figures, a contribution to a special issue "Compact Stars in the QCD Phase Diagram 2024"; v2 published version, minor corrections are added
References in corpus (73)
- Phases of Dense Quarks at Large N_c
- QCD at finite isospin density
- Quark Confinement from Color Confinement
- QCD-like Theories at Finite Baryon Density
- Constraining neutron star matter with QCD
- The Gribov problem and QCD dynamics
- Gapless two-flavor color superconductor
- Interacting quark matter equation of state for compact stars
- On two-color QCD with baryon chemical potential
- Infrared propagators of Yang-Mills theory from perturbation theory
- Hadron-Quark Crossover and Massive Hybrid Stars with Strangeness
- QCD at finite isospin density: from pion to quark-antiquark condensation
- New Neutron Star Equation of State with Quark-Hadron Crossover
- How perturbative QCD constrains the Equation of State at Neutron-Star densities
- QCD phase diagram for nonzero isospin-asymmetry
- An Infrared Safe perturbative approach to Yang-Mills correlators
- Phenomenological QCD equation of state for massive neutron stars
- Gaps and Critical Temperature for Color Superconductivity
- Hadron-Quark Crossover and Massive Hybrid Stars
- BEC-BCS Crossover in the Nambu--Jona-Lasinio Model of QCD
- Gapless color superconductivity at zero and at finite temperature
- Chromomagnetic instability in dense quark matter
- Quark-meson-diquark model for two-color QCD
- Polyakov loop modeling for hot QCD
- Ab-initio QCD calculations impact the inference of the neutron-star-matter equation of state
- Screening masses in neutral two-flavor color superconductor
- Fluctuations in the quark-meson model for QCD with isospin chemical potential
- Towards the phase diagram of dense two-color matter
- Deconfinement transition in SU(N) theories from perturbation theory
- Two-point correlation functions of QCD in the Landau gauge
- Asymptotic deconfinement in high-density QCD
- Implications of NICER for neutron star matter: the QHC21 equation of state
- Two-color quark matter: U(1)_A restoration, superfluidity, and quarkyonic phase
- Equation of state and speed of sound of isospin-asymmetric QCD on the lattice
- How nonperturbative is the infrared regime of Landau gauge Yang-Mills correlators?
- Behavior of Hadrons at Finite Density -- Lattice Study of Color SU(2) QCD
- Deconfinement transition in SU(2) Yang-Mills theory: A two-loop study
- Universal Aspects of QCD-like Theories
- Quark-hadron crossover equations of state for neutron stars: constraining the chiral invariant mass in a parity doublet model
- Stiffening of matter in quark-hadron continuity
- Two loop calculation of Yang-Mills propagators in the Curci-Ferrari model
- Polyakov-Quark-Meson-Diquark Model for two-color QCD
- Stabilizing perturbative Yang-Mills thermodynamics with Gribov quantization
- Phase transitions and gluodynamics in 2-colour matter at high density
- Dense 2-color QCD towards continuum and chiral limits
- Small parameters in infrared quantum chromodynamics
- Momentum Shell in Quarkyonic Matter from Explicit Duality: A Dual Model for Cold, Dense QCD
- Peaks of sound velocity in two color dense QCD: quark saturation effects and semishort range correlations
- Polyakov loop and QCD thermodynamics from the gluon and ghost propagators
- Two-colour QCD phases and the topology at low temperature and high density
- Lattice study of thermodynamic properties of dense QCD
- Lattice Study of Dense Matter with Two Colors and Four Flavors
- Finite-density gauge correlation functions in QC2D
- QCD constraints on isospin-dense matter and the nuclear equation of state
- Phenomenological neutron star equations of state: 3-window modeling of QCD matter
- Deconfinement Transition at High Isospin Chemical Potential and Low Temperature
- Gluon propagator in two-color dense QCD: Massive Yang-Mills approach at one-loop
- Sound velocity peak and conformality in isospin QCD
- Dense two-color QCD from Dyson-Schwinger equations
- Effects of Dense Quark Matter on Gluon Propagators in Lattice QCD
- Thermal quarks and gluon propagators in two-color dense QCD
- Phase structure and propagators at nonvanishing temperature for QCD and QCD-like theories
- Color screening in cold quark matter
- Probing the hadron mass spectrum in dense two-color QCD with the linear sigma model
- Enhanced contribution of the pairing gap to the QCD equation of state at large isospin chemical potential
- Pressure and speed of sound in two-flavor color-superconducting quark matter at next-to-leading order
- Sound velocity peak induced by the chiral partner in dense two-color QCD
- Delineating chiral separation effect in two-color dense QCD
- Thermal effects on sound velocity peak and conformality in isospin QCD
- On the origin of the peak of the sound velocity for isospin imbalanced strongly interacting matter
- Tripling Fluctuations and Peaked Sound Speed in Fermionic Matter
- Quarkyonic picture of isospin QCD
- Chiral effective model of cold and dense two-color QCD: The linear sigma model approach