论文标题
Horndeski全息两电流模型中的运输特性
Transport properties in the Horndeski holographic two-currents model
论文作者
论文摘要
在Horndeski重力框架中研究了全息两电流模型的传输特征。该系统显示金属或绝缘特性，具体取决于Horndeski耦合参数$γ$是负还是正面，但不受其他系统参数的影响，例如动量耗散$ \ hat {k} $的强度，掺杂$χ$和两个球场fielts $ ch $ ch $θ$。其次，我们证明导热率不仅受黑洞的固有特性的影响，而且还受模型参数的影响。此外，我们对Lorentz比率的特性特别感兴趣。不出所料，Wiedemann-Franz（WF）法律违反了大多数全息系统。特别有趣的是，在我们当前的理论中，典型轴模型中报告的几个洛伦兹比率仍然是正确的。但是，我们要强调的是，$ \ hat {\ bar {l}} _ a $的下限受系统参数$χ$，$θ$和$γ$的影响，这与典型轴模型不同。
The transport features of the holographic two-currents model are investigated in the Horndeski gravity framework. This system displays metallic or insulating characteristics depending on whether the Horndeski coupling parameter $γ$ is negative or positive, but is unaffected by other system parameters such as the strength of the momentum dissipation $\hat{k}$, the doping $χ$ and the coupling between two gauge fields $θ$. Secondly, we demonstrate that the thermal conductivities are affected not only by the inherent properties of the black hole, but also by the model parameters. Furthermore, we are particularly interested in the Lorentz ratios' properties. As expected, the Wiedemann-Franz (WF) law is violated, as it is in the majority of holographic systems. Particularly intriguing is the fact that several Lorentz ratio bounds reported in the typical axions model still remain true in our current theories. We would like to highlight out, however, that the lower bound for $\hat{\bar{L}}_A$ is affected by the system parameters $χ$, $θ$ and $γ$, which differs from the case of the typical axions model.
