Holographic p-wave superconductors from Gauss-Bonnet gravity

Details Holographic p-wave superconductors from Gauss-Bonnet gravity Holographic p-wave superconductors from Gauss-Bonnet gravity

2010-07-20

arxiv.org/abs/1007.3321v2

Phys. Rev. D 82, 066007 (2010)

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 6 figures

Scientific paper

10.1103/PhysRevD.82.066007

We study the holographic p-wave superconductors in a five-dimensional Gauss-Bonnet gravity with an SU(2) Yang-Mills gauge field. In the probe approximation, we find that when the Gauss-Bonnet coefficient grows, the condensation of the vector field becomes harder, both the perpendicular and parallel components, with respect to the direction of the condensation, of the anisotropic conductivity decrease. We also study the mass of the quasi-particle excitations, the gap frequency and the DC conductivities of the p-wave superconductor. All of them depend on the Gauss-Bonnet coefficient. In addition we observe a strange behavior for the condensation and the relation between the gap frequency and the mass of quasi-particles when the Gauss-Bonnet coefficient is larger than 9/100, which is the upper bound for the Gauss-Bonnet coefficient from the causality of the dual field theory.

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