Shear viscosity and instability from third order Lovelock gravity

Details Shear viscosity and instability from third order Lovelock gravity Shear viscosity and instability from third order Lovelock gravity

2009-05-16

arxiv.org/abs/0905.2675v2

Phys. Rev. D, 80,104019 (2009)

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, 1 figure+3 tables, typos corrected, contents expanded

Scientific paper

10.1103/PhysRevD.80.104019

We calculate the ratio of shear viscosity to entropy density for charged black branes in third order Lovelock theory. For chargeless black branes, the result turns out to be consistent with the prediction made in $\rm arXiv:0808.3498[\rm hep-th] $. We find that, the third order Lovelock gravity term does not contribute to causality violation unlike the Gauss-Bonnet term. The stability of the black brane again requires the value of the Lovelock coupling constant to be bounded by 1/4 in the infinite dimensionality limit.

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