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Gluonic phase versus LOFF phase in two-flavor quark matter

O. Kiriyama·D. H. Rischke·I. A. Shovkovy
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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,$Δ/δμ$. We find that the gluonic phase resolves the chromomagnetic instability encountered in a two-flavor color superconductor for $Δ/δμ< \sqrt{2}$. 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.

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O. Kiriyama, D. H. Rischke, I. A. Shovkovy. 2006-11-03. Gluonic phase versus LOFF phase in two-flavor quark matter. https://doi.org/10.1016/j.physletb.2006.10.067

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