# The Shear Viscosity to Entropy Ratio: A Status Report

@article{Cremonini2011TheSV,
title={The Shear Viscosity to Entropy Ratio: A Status Report},
author={Sera Cremonini},
journal={arXiv: High Energy Physics - Theory},
year={2011}
}
• S. Cremonini
• Published 2 August 2011
• Physics
• arXiv: High Energy Physics - Theory
This review highlights some of the lessons that the holographic gauge/gravity duality has taught us regarding the behavior of the shear viscosity to entropy density in strongly coupled field theories. The viscosity to entropy ratio has been shown to take on a very simple universal value in all gauge theories with an Einstein gravity dual. Here we describe the origin of this universal ratio, and focus on how it is modified by generic higher derivative corrections corresponding to curvature…
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