Speaker
Description
We study quarkyonic matter in a quark-meson coupling (QMC) model, focusing on the emergence of quark saturation in dense baryonic matter. Since the QMC framework explicitly incorporates quark substructure inside baryons, it provides a useful tool for connecting hadronic matter and quark-dominated matter in a unified relativistic description. We analyze how the appearance and growth of quark degrees of freedom affect the equation of state and the sound velocity. In particular, the quark saturation density is identified as a characteristic scale marking a rapid change in the composition and stiffness of matter. This behavior clarifies how quarkyonic matter can arise from baryonic matter while preserving important features of the underlying quark dynamics. Our results highlight the role of quark substructure in dense matter and provide insight into the transition from hadronic matter to quarkyonic matter under extreme conditions.