Effect of curvature squared corrections in AdS on the viscosity of the dual gauge theory
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Publication:438381
DOI10.1088/1126-6708/2009/01/044zbMATH Open1243.81159arXiv0712.0743OpenAlexW2012812032MaRDI QIDQ438381
Author name not available (Why is that?)
Publication date: 31 July 2012
Published in: (Search for Journal in Brave)
Abstract: We use the real-time finite-temperature AdS/CFT correspondence to compute the effect of general R^2 corrections to the gravitational action in AdS space on the shear viscosity of the dual gauge theory. The R^2 terms in AdS_5 are determined by the central charges of the CFT. We present an example of a four-dimensional gauge theory in which the conjectured lower bound of 1/(4pi) on the viscosity-to-entropy ratio is violated for finite N.
Full work available at URL: https://arxiv.org/abs/0712.0743
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