Neutrino emission from compact stars and inhomogeneous color superconductivity

Abstract

We discuss specific heat and neutrino emissivity due to direct Urca processes for quark matter in the color superconductive Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase of Quantum-Chromodynamics. We assume that the three light quarks $u,d,s$ are in a color and electrically neutral state and interact by a four fermion Nambu-Jona Lasinio coupling. We study a LOFF state characterized by a single plane wave for each pairing. From the evaluation of neutrino emissivity and fermionic specific heat, the cooling rate of simplified models of compact stars with a quark core in the LOFF state is estimated.

arXiv comment16 pages, 5 figures, revtex4 style. Version accepted for publication in Phys. Rev. D

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• Neutrino emissivities in 2SC color-superconducting quark matter
• Dense Baryonic Matter and Applications of QCD Phase Diagram Dualities
• Cooling of a Compact Star with a LOFF Matter Core