Shear Viscosity and Chern-Simons Diffusion Rate from Hyperbolic Horizons
High Energy Physics - Theory
2015-05-13 v2 General Relativity and Quantum Cosmology
Abstract
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 at all temperatures and it can be made arbitrarily small in the low temperature limit.
Keywords
Cite
@article{arxiv.0809.3388,
title = {Shear Viscosity and Chern-Simons Diffusion Rate from Hyperbolic Horizons},
author = {George Koutsoumbas and Eleftherios Papantonopoulos and George Siopsis},
journal= {arXiv preprint arXiv:0809.3388},
year = {2015}
}
Comments
4 pages, 1 figure, minor changes, published in PLB