# XIIIth Quark Confinement and the Hadron Spectrum

31 July 2018 to 6 August 2018
Maynooth University
Europe/Dublin timezone

## Study of deconfined quark matter at zero temperature and high density

5 Aug 2018, 17:10
20m
Hall F (Arts Bldg.)

### Hall F

#### Arts Bldg.

Talk D: Deconfinement

### Speaker

Mr Aleksandr Nikolaev (Far Eastern Federal University)

### Description

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, color singlet and triplet free energies and other physical quantities on the chemical potential.

### Primary authors

Mr Aleksandr Nikolaev (Far Eastern Federal University) Alexander Molochkov (Far Eastern Federal University) Ernst-Michael Ilgenfritz (Joint Institute for Nuclear Research Dubna, Russia) Victor Braguta (ITEP) Vitaly Bornyakov (IHEP)