Color superconducting quark matter in compact stars

Abstract

When nuclear matter reaches a high enough density, we expect that the nucleons will overlap so much as to lose their separate identities, and merge into quark matter. In this talk I will review some theoretical expectations and speculations about quark matter, focusing on the phenomenon of quark pair condensation (color superconductivity) and its application to compact stars.

Comments: Invited talk at the Conference on Compact Stars in the QCD Phase Diagram, Copenhagen, August 15-18, 2001. LaTeX with eps figs, 12 pages