Chiral Symmetry Breaking and Color Superconductivity in the Instanton Picture

Details Chiral Symmetry Breaking and Color Superconductivity in the Instanton Picture Chiral Symmetry Breaking and Color Superconductivity in the Instanton Picture

1999-05-24

arxiv.org/abs/hep-ph/9905465v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 6 ps figures, includes ws-p8-50x6-00.cls; references added

Scientific paper

The instanton approach to spontaneous chiral symmetry breaking is reviewed, with emphasis on the connection to chiral random matrix theory. We extend the approach to discuss the finite density, zero-temperature behaviour of quark matter. Since the instanton-induced interactions are attractive in both $\bar{q}q$ and $qq$ channels, a competition ensues between phases of matter with condensation in either or both. It results in chiral symmetry restoration due to the onset of diquark condensation, a `colour superconductor', at finite density.

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