XQCD 2018

We present the recent results on the confinement/deconfinement transition in lattice SU(2) QCD with two flavors of quarks at finite quark density and zero temperature. In the region ${\mu }_q$ ∼ 1000 MeV we observe the confinement/deconfinement transition which manifests itself in rising of the Polyakov loop and vanishing of the string tension $\sigma$. After the deconfinement is achieved at ${\mu }_q$ > 1000 MeV we observe a monotonous decrease of the spatial string tension ${\sigma }_s$ which ends up with ${\sigma }_s$ vanishing at ${\mu }_q$ > 2000 MeV. To study the properties of cold dense quark medium we measure the dependence of chiral and diquark condensates, quark density, topological susceptibility and other physical quantities on the chemical potential.