[NT/RBRC Seminar] Andreas Geissel, TU Darmstadt, "Equation of state of cold and dense quark matter"

Friday 6 Dec 2024, 11:00 → 13:00 US/Eastern

We investigate the thermodynamic properties of color-superconducting two flavor quark matter at high densities and zero temperature, considering the next-to-leading order (NLO) correction in the strong coupling and the gap. Assuming that the ground state of dense quark matter is a color superconductor, we calculate the pressure and speed of sound for two massless quark flavors. Our results show that the NLO correction is comparable to the leading-order effects, increasing both pressure and speed of sound. Finally, we provide a parameterization of the speed of sound and discuss implications for three-flavor quark matter relevant to neutron stars.