title: Electrical conductivity of the quark-gluon plasma across the deconfinement transition.
abstract: A lattice calculation is presented for the electrical conductivity σ 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 σ/T across the transition.
authors.affiliation: Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, United Kingdom and Institute for Theoretical Physics, Universität Regensburg, D-93040 Regensburg, Germany.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Amato
authors.forename: Gert
authors.initials: G
authors.lastname: Aarts
authors.forename: Chris
authors.initials: C
authors.lastname: Allton
authors.forename: Pietro
authors.initials: P
authors.lastname: Giudice
authors.forename: Simon
authors.initials: S
authors.lastname: Hands
authors.forename: Jon-Ivar
authors.initials: JI
authors.lastname: Skullerud