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arXiv · 1708.07194

Axionic black branes in the k-essence sector of the Horndeski model

Adolfo Cisterna·Mokhtar Hassaine·Julio Oliva·Massimiliano Rinaldi
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Abstract

We construct new black brane solutions in the context of Horndeski gravity, in particular in its K-essence sector. These models are supported by axion scalar fields that depend only on the horizon coordinates. The dynamics of these fields is determined by a K-essence term that includes the standard kinetic term $X$ and a correction of the form $X^{k}$. We find both neutral and charged exact and analytic solutions in $D$-dimensions, which are asymptotically anti de Sitter. Then, we describe in detail the thermodynamical properties of the four-dimensional solutions and we compute the dual holographic DC conductivity.

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Adolfo Cisterna, Mokhtar Hassaine, Julio Oliva, Massimiliano Rinaldi. 2017-08-23. Axionic black branes in the k-essence sector of the Horndeski model. https://doi.org/10.1103/physrevd.96.124033

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