强耦合条形超导体的电导率
Conductivity of Strongly Coupled Striped Superconductor
摘要：
我们利用规范/引力对偶（全息术）研究了强耦合条形超导体的电导率。该研究是分析，在大调制制度。我们表明，光学电导率是不均匀的，但在低温下各向同性。在低于临界温度附近，我们在小频率ω下解析计算了电导率，发现电导率是不均匀的和各向异性的。各向异性是虚的，其比例为1/ω。我们还解析地计算了第二声速和热力学磁化率。
英文摘要：
We study the conductivity of a strongly coupled striped superconductor using gauge/gravity duality (holography). The study is done analytically, in the large modulation regime. We show that the optical conductivity is inhomogeneous but isotropic at low temperatures. Near but below the critical temperature, we calculate the conductivity analytically at small frequency ω, and find it to be both inhomogeneous and anisotropic. The anisotropy is imaginary and scales like 1/ω. We also calculate analytically the speed of the second sound and the thermodynamic susceptibility.
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