Shear Viscosity and Chern-Simons Diffusion Rate from Hyperbolic Horizons

Details Shear Viscosity and Chern-Simons Diffusion Rate from Hyperbolic Horizons Shear Viscosity and Chern-Simons Diffusion Rate from Hyperbolic Horizons

2008-09-19

arxiv.org/abs/0809.3388v2

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 1 figure, minor changes, published in PLB

Scientific paper

We calculate the shear viscosity and anomalous baryon number violation rate in quantum field theories at finite temperature having gravity duals with hyperbolic horizons. We find the explicit dependence of these quantities on the temperature. We show that the ratio of shear viscosity to entropy density is below $1/(4\pi)$ at all temperatures and it can be made arbitrarily small in the low temperature limit.

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