Chromomagnetic instability in two-flavor quark matter at nonzero temperature

Abstract

We calculate the effective potential of the 2SC/g2SC phases including vector condensates ($<g{A}_z^6>$ and $<g{A}_z^8>$) and study the gluonic phase and the single plane-wave Larkin-Ovchinnikov-Fulde-Ferrell state at nonzero temperature. Our analysis is performed within the framework of the gauged Nambu--Jona-Lasinio model. We compute potential curvatures with respect to the vector condensates and investigate the temperature dependence of the Meissner masses squared of gluons of color 4--7 and 8 in the neutral 2SC/g2SC phases. The phase diagram is presented in the plane of temperature and coupling strength. The unstable regions for gluons 4--7 and 8 are mapped out on the phase diagram. We find that, apart from the case of strong coupling, the 2SC/g2SC phases at low temperatures are unstable against the vector condensation until the temperature reaches tens of MeV.

10 pages, 10 figures, revisions to text, published in Phys. Rev. D

References in corpus (45)

• NJL-model analysis of dense quark matter
• Color superconducting quark matter
• The Quark-Gluon Plasma in Equilibrium
• Crystalline Color Superconductivity
• The phase diagram of neutral quark matter: Self-consistent treatment of quark masses
• Gapless two-flavor color superconductor
• The Crystallography of Color Superconductivity
• The phase diagram of three-flavor quark matter under compact star constraints
• Gapless Color-Flavor-Locked Quark Matter
• Two lectures on color superconductivity
• Gapless color superconductivity at zero and at finite temperature
• Chromomagnetic instability in dense quark matter
• Meissner masses in the gCFL phase of QCD
• Chromomagnetic Instability and the LOFF state in a two flavor Color Superconductor
• Screening masses in neutral two-flavor color superconductor
• Evaluating the Gapless Color-Flavor Locked Phase
• Extensive study of phase diagram for charge neutral homogeneous quark matter affected by dynamical chiral condensation -- unified picture for thermal unpairing transitions from weak to strong coupling --
• Mixed phases of color superconducting quark matter
• The Crystallography of Three-Flavor Quark Matter
• Color Superconductivity at Moderate Baryon Density
• Photons in gapless color-flavor-locked quark matter
• Analytical and numerical evaluation of the Debye and Meissner masses in dense neutral three-flavor quark matter
• Nonstrange hybrid compact stars with color superconducting matter
• Phase diagram of dense neutral three-flavor quark matter
• Gluonic phase in neutral two-flavor dense QCD
• Meson Supercurrent State in High Density QCD
• Heating (Gapless) Color-Flavor Locked Quark Matter
• Phase Structure of 2-Flavor Quark Matter: Heterogeneous Superconductors
• A note on color neutrality in NJL-type models
• Gauge dependence identities for color superconducting QCD
• Gluons, tadpoles, and color neutrality in a two-flavor color superconductor
• Melting Pattern of Diquark Condensates in Quark Matter
• The Meissner Effect in a Two Flavor LOFF Color Superconductor
• Spontaneous current generation in the gapless 2SC phase
• A Neutral Two Flavor Loff Color Superconductor
• Neutral Larkin--Ovchinnikov--Fulde--Ferrell state and chromomagnetic instability in two-flavor dense QCD
• Novel Phases at High Density and their Roles in the Structure and Evolution of Neutron Stars
• Characterizing the Larkin-Ovchinnikov-Fulde-Ferrel phase induced by the chromomagnetic instability
• How do chiral condensates affect color superconducting quark matter under charge neutrality constraints?
• The phase diagram of neutral quark matter: The effect of neutrino trapping
• Instability of a gapless color superconductor with respect to inhomogeneous fluctuations
• Collective excitations, instabilities, and ground state in dense quark matter
• Manifestation of Instabilities in Nambu-Jona-Lasinio type models
• Gapless phases of color-superconducting matter
• Meissner screening mass in two-flavor quark matter at nonzero temperature

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• Number of the QCD critical points with neutral color superconductivity
• Another chiral critical end-point induced by neutral color superconductivity
• Neutral Color Superconductivity Including Inhomogeneous Phases at Finite Temperature
• Gluonic phases, vector condensates, and exotic hadrons in dense QCD
• Roles of axial anomaly on neutral quark matter with color superconducting phase
• Meissner screening masses in gluonic phase
• Dynamical stabilization of runaway potentials and landscape of vacua at finite density
• Phase diagram of two-flavor quark matter: Gluonic phase at nonzero temperature
• Complete Gluonic Phase in Two-Flavor Color Superconductivity