A (1+1) dimensional example of Quarkyonic matter

Abstract

We analyze the (1+1) dimensional QCD (QCD_2) at finite density to consider a number of qualitative issues: confinement in dense quark matter, the chiral symmetry breaking near the Fermi surface, the relation between chiral spirals and quark number density, and a possibility of the spontaneous flavor symmetry breaking. We argue that while the free energy is dominated by perturbative quarks, confined excitations at zero density can persist up to high density. So quark matter in QCD${}_2$ is an example of Quarkyonic matter. The non-Abelian bosonization and associated charge-flavor-color separation are mainly used in order to clarify basic structures of QCD_2 at finite density.

32 pages, 9 figures, published version

References in corpus (18)

• Color superconductivity in dense quark matter
• Cold Quark Matter
• The phase structure of the Polyakov--quark-meson model beyond mean field
• Inhomogeneous phases in the Nambu-Jona-Lasino and quark-meson model
• Self-consistent crystalline condensate in chiral Gross-Neveu and Bogoliubov-de Gennes systems
• Baryons and the phase diagram for a large number of colors and flavors
• Covering the Fermi Surface with Patches of Quarkyonic Chiral Spirals
• Chiral density waves in the NJL${}_2$ model with quark number and isospin chemical potentials
• Solving two-dimensional large-N QCD with a nonzero density of baryons and arbitrary quark mass
• The nuclear liquid-gas phase transition at large $N_c$ in the Van der Waals approximation
• Brane-induced Skyrmion on S^3: baryonic matter in holographic QCD
• A percolation transition in Yang-Mills matter at finite number of colours
• Comparison of the non-uniform chiral and 2SC phases at finite temperatures and densities
• Phase diagram of hot and dense QCD constrained by the Statistical Model
• Phase diagram of the non-uniform chiral condensate in different regularization schemes at T=0
• The Dichotomous Nucleon: Some Radical Conjectures for the Large Nc Limit
• Holographic two dimensional QCD and Chern-Simons term
• Chiral density waves in quarkyonic matter

Cited by in corpus (37)

• SU(N) gauge theories at large N
• Phenomenological QCD equation of state for massive neutron stars
• The quark mass gap in a magnetic field
• Interweaving Chiral Spirals
• Stiffening of matter in quark-hadron continuity
• Inhomogeneous charged pion condensation phenomenon in the NJL${}_2$ model with quark number and isospin chemical potentials
• Introductory lectures to large-N QCD phenomenology and lattice results
• Peaks of sound velocity in two color dense QCD: quark saturation effects and semishort range correlations
• Phenomenological neutron star equations of state: 3-window modeling of QCD matter
• Dissipationless Hall Current in Dense Quark Matter in a Magnetic Field
• Gluon propagator in two-color dense QCD: Massive Yang-Mills approach at one-loop
• Novel Topological Effects in Dense QCD in a Magnetic Field
• No-Go Theorem for Critical Phenomena in Large-Nc QCD
• Absence of Landau-Peierls Instability in the Magnetic Dual Chiral Density Wave Phase of Dense QCD
• Chiral condensates for neutron stars in hadron-quark crossover: from a parity doublet nucleon model to an NJL quark model
• Thermal quarks and gluon propagators in two-color dense QCD
• Phenomenological QCD equations of state for neutron stars
• Phase transitions and resilience of the MDCDW phase at finite temperature and density
• Speed of Sound for Hadronic and Quark Phases in a Magnetic Field
• Quark matter contribution to the heat capacity of magnetized neutron stars
• Bayesian inference of strangeon matter using the measurements of PSR J0437-4715 and GW190814
• Delineating chiral separation effect in two-color dense QCD
• Delineating the properties of matter in cold, dense QCD
• Quarkyonic Percolation and deconfinement at finite density and number of colors
• Temporal Chiral Spiral in Strong Magnetic Fields
• Chiral Spirals from Noncontinuous Chiral Symmetry: The Gross-Neveu model results
• Axion-Polaritons in the Magnetic Dual Chiral Density Wave Phase of Dense QCD
• Lack of Debye and Meissner screening in strongly magnetized quark matter at intermediate densities
• Axion-Polaritons in quark stars: a possible solution to the missing pulsar problem
• Dual chiral density wave induced oscillating Casimir effect
• Thermal phonon fluctuations and stability of the magnetic dual chiral density wave phase in dense QCD
• Grassmann tensor renormalization group approach to $(1+1)$-dimensional two-color lattice QCD at finite density
• Chiral condensates for neutron stars in hadron-quark crossover; from a parity doublet nucleon model to an NJL quark model
• Constraining the competition between the deconfinement and chiral phase transitions in light of the multimessenger era
• Anomalous Transport Properties of Dense QCD in a Magnetic Field
• Interweaving Chiral Spirals at finite quark density
• Phenomenological QCD equations of state for neutron star mergers, a talk presented at CPOD17