Plasma conductivity at finite coupling
Abstract
By taking into account the full order(α'3) type IIB string theory corrections to the supergravity action, we compute the leading finite 't Hooft coupling order(λ-3/2) corrections to the conductivity of strongly-coupled SU(N) N=4 supersymmetric Yang-Mills plasma in the large N limit. We find that the conductivity is enhanced by the corrections, in agreement with the trend expected from previous perturbative weak-coupling computations.
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