论文标题
四分之一的Horndeski，平面黑洞，全息方面和通用界限
Quartic Horndeski, planar black holes, holographic aspects and universal bounds
论文作者
论文摘要
在这项工作中，我们考虑了一种特定的转移不变的四分之一的Horndeski模型，该模型衍生出具有轴子头发的新平面黑洞溶液。我们根据其地平面结构及其热力学特性探索这些溶液。我们使用量规/重力词典来得出全息双重双重的直流运输系数，目的是研究新变形如何影响某些著名的结合建议的普遍性。尽管发现其中大多数是正确的，但我们仍然发现对热电导率到温度下界的一个非常有趣的参数违反，从而获得了对尺度和耦合的依赖。最后，使用一种扰动方法，证明了对粘性与注入比的更残酷的侵犯。
In this work, we consider a specific shift-invariant quartic Horndeski model, deriving new planar black hole solutions with axionic hair. We explore these solutions in terms of their horizon structure and their thermodynamic properties. We use the gauge/gravity dictionary to derive the DC transport coefficients of the holographic dual with the aim of investigating how the new deformation affects the universality of some renown bound proposals. Although most of them are found to hold true, we nevertheless find a highly interesting parametric violation of the heat conductivity-to-temperature lower bound which acquires a dependence on both the scale and the coupling. Finally, using a perturbative approach, a more brutal violation of the viscocity-to-entropy ratio is demonstrated.
