Gluonic phase versus LOFF phase in two-flavor quark matter

Abstract

We study the gluonic phase in a two-flavor color superconductor as a function of the ratio of the gap over the chemical potential mismatch,$\Delta /\delta \mu$. We find that the gluonic phase resolves the chromomagnetic instability encountered in a two-flavor color superconductor for $\Delta /\delta \mu <\sqrt{2}$. We also calculate approximately the free energies of the gluonic phase and the single plane-wave LOFF phase and show that the former is favored over the latter for a wide range of coupling strengths.

6 pages, 3 figures, references added, revisions to text, version accepted for publication in Phys. Lett. B

References in corpus (5)

• Two lectures on color superconductivity
• Chromomagnetic instability in dense quark matter
• 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
• Gapless phases of color-superconducting matter

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