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

被引:37
作者
Cisterna, Adolfo [1 ,2 ]
Hassaine, Mokhtar [3 ]
Oliva, Julio [4 ]
Rinaldi, Massimiliano [2 ,5 ]
机构
[1] Univ Cent Chile, Acad, Toesca 1783, Santiago, Chile
[2] Univ Trento, Dipartmento Fis, Via Sommar 14, I-38123 Povo, TN, Italy
[3] Univ Talca, Inst Matemat & Fis, Casilla 747, Talca, Chile
[4] Univ Concepcion, Dept Fis, Casilla 160-C, Concepcion, Chile
[5] Ist Nazl Fis Nucl, TIFPA, Via Sommar 14, I-38123 Trento, Italy
关键词
GRAVITY;
D O I
10.1103/PhysRevD.96.124033
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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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页数:9
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