Towards 't Hooft parameter corrections to charge transport in strongly-coupled plasma

Details Towards 't Hooft parameter corrections to charge transport in strongly-coupled plasma Towards 't Hooft parameter corrections to charge transport in strongly-coupled plasma

2010-06-28

arxiv.org/abs/1006.5480v1

JHEP 1010:068,2010

Physics

High Energy Physics

High Energy Physics - Theory

23 pages

Scientific paper

10.1007/JHEP10(2010)068

We study R-charge transport in a wide class of strongly-coupled supersymmetric plasmas at finite temperature with 't Hooft coupling corrections. To achieve this, we use the gauge/string duality and include the full set of order(\alpha'^3) corrections to the supergravity backgrounds given at zeroth order by the direct product of the AdS-Schwarzschild black hole with a five-dimensional compact Einstein manifold. On general grounds, the reduction leads to a large number of higher derivative operators, which we reduce using the symmetries of the solution. We are left with a universal set of operators whose coefficients can in principle be fixed by carrying out an explicit compactification. We apply our results to the computation of the R-charge conductivity of the supersymmetric plasma at finite yet strong coupling.

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