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Black branes in asymptotically Lifshitz spacetime and viscosity/entropy ratios in Horndeski gravity
We investigate black brane solutions in asymptotically Lifshitz spacetime in
3+1-dimensional Horndeski gravity, which admit a critical exponent fixed at
. The cosmological constant depends on as .
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 at
.Comment: 7 pages, no figures, 1 table. Version published in EP
Braneworlds in Horndeski gravity
In this paper we address the issue of finding braneworld solutions in a
five-dimensional Horndeski gravity and the mechanism of gravity localization
into the brane via `almost massless modes' for suitable values of the Horndeski
parameters. We compute the corrections to the Newtonian potential and discuss
the limit where four-dimensional gravity is recovered.Comment: 14 pages, 6 figure
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