In the last decade there have been many studies aimed at understanding the properties of ultradense neutron star matter. Despite the existing efforts, a satisfying explanation of their properties is still out of reach. The aim of this project is to improve our current understanding of the thermodynamic properties of strongly interacting matter at very high energy density and small and moderate temperatures, by applying effective theories and modern thermal field theory techniques, in particular resummed perturbation theory. The main result of this project is the derivation of a new order in the perturbative equation of state for dense quark matter that dramatically decreases its current uncertainty at zero temperature.

2022

2027