Gluonic phase in neutral two-flavor dense QCD

Abstract

In the Ginzburg-Landau approach, we describe a new phase in neutral two-flavor quark matter in which gluonic degrees of freedom play a crucial role. We call it a gluonic phase. In this phase gluonic dynamics cure a chromomagnetic instability in the 2SC solution and lead to spontaneous breakdown of the color gauge symmetry, the electromagnetic U(1), and the rotational SO(3). In other words, the gluonic phase describes an anisotropic medium in which the color and electric superconductivities coexist. Because most of the initial symmetries in this system are spontaneously broken, its dynamics is very rich.

Revtex4, 11 pages, clarifications and new section added, references added, to appear in Phys. Lett. B

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• 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
• Photons in gapless color-flavor-locked quark matter
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• Novel Phases at High Density and their Roles in the Structure and Evolution of Neutron Stars
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• Neutral Color Superconductivity Including Inhomogeneous Phases at Finite Temperature
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• Meissner screening mass in two-flavor quark matter at nonzero temperature
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• A diagrammatic derivation of the meson effective masses in the neutral color-flavor-locked phase of Quantum Chromodynamics
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• Color superconductivity and the strange quark
• Phase diagram of two-flavor quark matter: Gluonic phase at nonzero temperature
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• Inhomogeneous phase of a Gluon Plasma at finite temperature and density
• Complete Gluonic Phase in Two-Flavor Color Superconductivity
• Formation of Gapless Phases of $K^0$ Condensed Color-Flavor Locked Superconducting Quark Matter
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