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arXiv · 1811.12302

Multi-winding flux tubes in CFL quark matter

Alexander Haber·Andreas Schmitt
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Abstract

Color-flavor locked quark matter can be described as a three-component superconductor and thus shows unconventional behavior in the transition regime from type-I to type-II superconductivity. We discuss this behavior by studying magnetic line defects in a Ginzburg-Landau approach, taking into account all possible values of the three winding numbers. After a brief discussion of the defects that include baryon circulation we focus on pure magnetic flux tubes. We show that at strong coupling, relevant for neutron stars, type-II behavior is conceivable and the most preferred configuration has minimal total winding. Only at weak coupling we find a regime where multi-winding flux tubes are preferred, although this regime most likely requires an unrealistically large superconducting gap.

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Alexander Haber, Andreas Schmitt. 2018-11-29. Multi-winding flux tubes in CFL quark matter. https://arxiv.org/abs/1811.12302

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