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Color Diffusion and Conductivity in a Quark-Gluon Plasma

Alexei V. Selikhov·Miklos Gyulassy
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Abstract

Color diffusion is shown to be an important dissipative property of quark-gluon plasmas that rapidly damps collective color modes. We derive the characteristic color relaxation time scale, $t_c\approx (3α_s T \log(m_E/m_M ))^{-1}$, showing its sensitivity to the ratio of the static color electric and magnetic screening masses. This leads to a surprisingly small color conductivity, $σ_c\approx 2 T/\log(m_E/m_M)$, which in fact vanishes in the semi-classical (1-loop) limit.

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Alexei V. Selikhov, Miklos Gyulassy. 1993-07-07. Color Diffusion and Conductivity in a Quark-Gluon Plasma. https://doi.org/10.1016/0370-2693(93)90341-e

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