Zusammenfassung
A lattice calculation is presented for the electrical conductivity sigma of the QCD plasma with 2 + 1 dynamical flavors at nonzero temperature. We employ the conserved lattice current on anisotropic lattices using a tadpole-improved clover action and study the behavior of the conductivity over a wide range of temperatures, both below and above the deconfining transition. The conductivity is ...
Zusammenfassung
A lattice calculation is presented for the electrical conductivity sigma of the QCD plasma with 2 + 1 dynamical flavors at nonzero temperature. We employ the conserved lattice current on anisotropic lattices using a tadpole-improved clover action and study the behavior of the conductivity over a wide range of temperatures, both below and above the deconfining transition. The conductivity is extracted from a spectral-function analysis using the maximal entropy method, and a discussion of its systematics is provided. We find an increase of sigma/T across the transition.
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