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Confinement versus color superconductivity: a lattice investigation

Kurt Langfeld
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Abstract

High density YM-theory is addressed by means of an effective theory where a Higgs type field corresponds to the diquark order parameter. The effective Higgs theory mimics the Cooper instability at the Fermi surface. After Landau gauge fixing, the theory possesses a global color degree of freedom. Color superconductivity corresponds to a spontaneous breakdown of the residual global color symmetry. Numerical simulations illustrate this mechanism of spontaneously broken global color for the case of the standard electro-weak phase transition and for the case of the transition between the confinement and the Higgs phase, respectively. The latter transition is relevant for the study of diquark condensation.

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Kurt Langfeld. 2001-09-27. Confinement versus color superconductivity: a lattice investigation. https://arxiv.org/abs/hep-lat/0109033

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