Quark matter with pion condensate in an effective chiral model

We study the chirally broken phase of quark matter with static pion condensates. We use the effective chiral quark-meson model which successfully reproduces properties of the lowest baryons. Its dynamics is governed by the sigmamodel lagrangian with quark and meson degrees of freedom. We find that at low densities the system has broken chiral symmetry. If deconfinement occurs at a lower density than the chiral symmetry restoration, the chirally broken quark matter is the ground state between the two transitions. (orig./HSI)