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Gluons, tadpoles, and color neutrality in a two-flavor color superconductor

Dennis D. Dietrich·Dirk H. Rischke
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Abstract

Considering cold, dense quark matter with two massless quark flavors, we demonstrate how, in a self-consistent calculation in the framework of QCD, the condensation of Cooper pairs induces a non-vanishing background color field. This background color field has precisely the right magnitude to cancel tadpole contributions and thus ensures overall color neutrality of the two-flavor color superconductor.

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Dennis D. Dietrich, Dirk H. Rischke. 2003-12-13. Gluons, tadpoles, and color neutrality in a two-flavor color superconductor. https://doi.org/10.1016/j.ppnp.2004.02.040

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