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arXiv · 1901.06770

Black branes in asymptotically Lifshitz spacetime and viscosity/entropy ratios in Horndeski gravity

F. A. Brito·F. F. Santos
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Abstract

We investigate black brane solutions in asymptotically Lifshitz spacetime in 3+1-dimensional Horndeski gravity, which admit a critical exponent fixed at $z=1/2$. The cosmological constant depends on $z$ as $\Lambda=-(1+2z)/L^{2}$. We compute the shear viscosity in the 2+1-dimensional dual boundary field theory via holographic correspondence. We investigate the violation of the bound for viscosity to entropy density ratio of $\eta/s\geq1/(4\pi)$ at $z=1/2$.

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F. A. Brito, F. F. Santos. 2019-01-21. Black branes in asymptotically Lifshitz spacetime and viscosity/entropy ratios in Horndeski gravity. https://doi.org/10.1209/0295-5075%2F129%2F50003

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