https://doi.org/10.1140/epja/i2005-10301-2
Quark-Gluon-Plasma Thermalization
Transport coefficients of strongly coupled gauge theories: Insights from string theory
Perimeter Institute for Theoretical Physics, 31 Caroline Street North, N2L 2Y5, Waterloo, Ontario, Canada
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Received:
26
November
2005
Accepted:
2
January
2006
Published online:
3
August
2006
Abstract
The transport properties of certain strongly coupled thermal gauge theories can be determined from their effective description in terms of gravity or superstring theory duals. Here we provide a short summary of the results for the shear and bulk viscosity, charge diffusion constant, and the speed of sound in supersymmetric strongly interacting plasmas. We also outline a general algorithm for computing transport coefficients in any gravity dual. The algorithm relates the transport coefficients to the coefficients in the quasinormal spectrum of five-dimensional black holes in asymptotically anti de Sitter space.
PACS: 11.25.Hf Conformal field theory, algebraic structures – / 11.10.Wx Finite-temperature field theory –
© Società Italiana di Fisica and Springer-Verlag, 2006
