The gravity dual of a p-wave superconductor

Details The gravity dual of a p-wave superconductor The gravity dual of a p-wave superconductor

2008-05-19

arxiv.org/abs/0805.2960v2

JHEP 0811:033,2008

Physics

High Energy Physics

High Energy Physics - Theory

39 pages, 7 figures. v2: added discussion of conductivity matrix and made minor changes

Scientific paper

10.1088/1126-6708/2008/11/033

We construct black hole solutions to the Yang-Mills equations in an AdS_4-Schwarzschild background which exhibit superconductivity. What makes these backgrounds p-wave superconductors is that the order parameter is a vector, and the conductivities are strongly anisotropic in a manner that is suggestive of a gap with nodes. The low-lying excitations of the normal state have a relaxation time which grows rapidly as the temperature decreases, consistent with the absence of impurity scattering. A numerical exploration of quasinormal modes close to the transition temperature suggests that p-wave backgrounds are stable against perturbations analogous to turning on a p+ip gap, whereas p+ip-wave configurations are unstable against turning into pure p-wave backgrounds.

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