Lattice study of thermodynamic properties of dense QC$_2$D

Understand

In this paper we study thermodynamic properties of dense cold $SU(2)$ QCD within lattice simulation with dynamical rooted staggered quarks which in the continuum limit correspond to $N_f=2$ quark flavours.

• We calculate baryon density, renormalized chiral and diquark condensates for various baryon chemical potentials in the region $\mu \in (0,\,2000)$ MeV.
• It is found, that in the region $\mu \in (0,\,540)$ MeV the system is well described by the ChPT predictions.
• In the region $\mu > 540$ MeV the system becomes sufficiently dense and ChPT is no longer applicable to describe lattice data.