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Electrical conductivity of hot QCD matter
W Cassing1, O Linnyk, T Steinert
1Institut für Theoretische Physik, Universität Giessen, 35392 Giessen, Germany.
Abstract:
We study the electric conductivity of hot QCD matter at various temperatures T within the off-shell parton-hadron-string dynamics transport approach for interacting partonic, hadronic or mixed systems in a finite box with periodic boundary conditions. The response of the strongly interacting system in equilibrium to an external electric field defines the electric conductivity σ(0). We find a sizable temperature dependence of the ratio σ(0)/T well in line with calculations in a relaxation time approach for T(c)
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