QCD material parameters from the lattice
Using an eighth-order Taylor expansion in baryon chemical potential, we recently obtained the (2+1)-flavor QCD equation of state (EoS) at non-zero conserved charge chemical potentials from the lattice. We focused on strangeness-neutral, isospin-symmetric QCD matter, which closely resembles the situation encountered in heavy-ion collision experiments. Using this EoS, we present here preliminary results on various QCD material parameters, in particular the isovolumetric specific heat, and the isothermal and isentropic sound speeds and compressibilities. Consistent with the pressure, the specific heat, speed of sound, and compressibility show no indication for an approach to critical behavior in the surveyed ranges.