Magnetic component of gluon plasma and its viscosity

Maxim N. Chernodub (1) , H. Verschelde (2) , V. I. Zakharov (3, 4)

1 LMPT - Laboratoire de Mathématiques et Physique Théorique
2 DMPA - Department of Mathematical Physics and Astronomy [Ghent]
3 ITEP - Institute of Theoretical and Experimental Physics [Moscow]
4 MPI-P - Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)

We discuss the role of the magnetic degrees of freedom of the gluon plasma in its viscosity. The main assumption is that motions of the magnetic component and of the rest of the plasma can be considered as independent. The magnetic component in the deconfined phase is described by a three-dimensional (Euclidean) field theory. The parameters of the theory can be estimated phenomenologically, from the lattice data. It is not ruled out that the magnetic component is superfluid.

Mots clés: Yang-Mills theory; strong interactions; topological defects; transport properties; deconfinement

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Maxim N. Chernodub, H. Verschelde, V. I. Zakharov. Magnetic component of gluon plasma and its viscosity. 2009. ⟨hal-00384992⟩