Friday, July 26, 2013

1307.6763 (Alessandro Amato et al.)

Electrical conductivity of the quark-gluon plasma across the
deconfinement transition

Alessandro Amato, Gert Aarts, Chris Allton, Pietro Giudice, Simon Hands, Jon-Ivar Skullerud
A lattice calculation is presented for the electrical conductivity of the QCD plasma with 2+1 dynamical flavours at nonzero temperature. We employ the conserved lattice current on anisotropic lattices using a tadpole-improved clover action and study the behaviour 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.
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