论文标题
来自高级衍生理论的全息P波超导性
Holographic p-wave superconductivity from higher derivative theory
论文作者
论文摘要
我们构建具有Weyl校正的全息SU（2）P波超导体模型。高导数（HD）项似乎不会破坏P波超导阶段的产生。我们主要研究AC电导率的特性，在带有Weyl校正的全息SU（2）P-波超导体中不存在。超导相中的电导率表现出明显的各向异性行为。沿$ y $方向，电导率$σ_{yy} $类似于全息s波超导体的电导率。超导能隙表现出很大的扩展。对于沿$ x $方向的电导率$σ_{xx} $，正常状态中实际部分的行为与$σ_{yy} $的行为非常相似。但是，电导率的各向异性显然出现在超导阶段。一旦系统进入超导阶段，无论在正常状态下，系统进入超导阶段，低频下的drike峰就会出现在$ rece_ {xx} $中。
We construct a holographic SU(2) p-wave superconductor model with Weyl corrections. The high derivative (HD) terms do not seem to spoil the generation of the p-wave superconducting phase. We mainly study the properties of AC conductivity, which is absent in holographic SU(2) p-wave superconductor with Weyl corrections. The conductivities in superconducting phase exhibit obvious anisotropic behaviors. Along $y$ direction, the conductivity $σ_{yy}$ is similar to that of holographic s-wave superconductor. The superconducting energy gap exhibits a wide extension. For the conductivity $σ_{xx}$ along $x$ direction, the behaviors of the real part in the normal state are closely similar to that of $σ_{yy}$. However, the anisotropy of the conductivity obviously shows up in the superconducting phase. A Drude-like peak at low frequency emerges in $Reσ_{xx}$ once the system enters into the superconducting phase, regardless of the behaviors in normal state.
