Color-flavor locked superconductor in a magnetic field

Details Color-flavor locked superconductor in a magnetic field Color-flavor locked superconductor in a magnetic field

2007-08-02

arxiv.org/abs/0708.0307v3

Phys.Rev.D76:105030,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 3 figures. Version accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.76.105030

We study the effects of moderately strong magnetic fields on the properties of color-flavor locked color superconducting quark matter in the framework of the Nambu-Jona-Lasinio model. We find that the energy gaps, which describe the color superconducting pairing as well as the magnetization, are oscillating functions of the magnetic field. Also, we observe that the oscillations of the magnetization can be so strong that homogeneous quark matter becomes metastable for a range of parameters. We suggest that this points to the possibility of magnetic domains or other types of magnetic inhomogeneities in the quark cores of magnetars.

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