Color conductivity and ladder summation in hot QCD

Abstract

The color conductivity is computed at leading logarithmic order using a Kubo formula. We show how to sum an infinite series of planar ladder diagrams, assuming some approximations based on the dominance of soft scattering processes between hard particles in the plasma. The result agrees with the one obtained previously from a kinetical approach.

15 pages, 4 figures. Explanations enlarged, two figures and some refs added, typos corrected. Final version to be published in Phys.Rev.D

References in corpus (4)

• From hard thermal loops to Langevin dynamics
• High temperature color conductivity at next-to-leading log order
• Ultrasoft Amplitudes in Hot QCD
• Collision Terms from Fluctuations in the HTL Theory for the Quark-Gluon Plasma

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