From QCD lattice calculations to the equation of state of quark matter
  We describe two-flavor QCD lattice data for the pressure at finite temperature and zero chemical potential within a quasiparticle model. Relying only on thermodynamic selfconsistency, the model is extended to nonzero chemical potential. The results agree with lattice calculations in the region of small chemical potential. 
A. Peshier, B. Kampfer, G. Soff