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arXiv · hep-ph/0302142

Gapless two-flavor color superconductor

Igor Shovkovy·Mei Huang
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Abstract

A new, gapless two-flavor color superconducting phase that appears under conditions of local charge neutrality and $β$-equilibrium is revealed. In this phase, the symmetry of the ground state is the same as in the conventional two-flavor color superconductor. In the low-energy spectrum of this phase, however, there are only two gapped fermionic quasiparticles, and the other four quasiparticles are gapless. The origin and the basic properties of the gapless two-flavor color superconductor are discussed. This phase is a natural candidate for quark matter in cores of compact stars.

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Igor Shovkovy, Mei Huang. 2003-04-22. Gapless two-flavor color superconductor. https://doi.org/10.1016/s0370-2693(03)00748-2

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