Characteristic length of a Holographic Superconductor with -wave gap
arXiv:1006.5483 · doi:10.1103/PhysRevD.82.126014
Abstract
After the discovery of the -wave and -wave holographic superconductors, holographic models of -wave superconductor have also been constructed recently. We study analytically the perturbation of the dual gravity theory to calculate the superconducting coherence length of the -wave holographic superconductor near the superconducting phase transition point. The superconducting coherence length divergents as near the critical temperature . We also obtain the magnetic penetration depth by adding a small external homogeneous magnetic field. The results agree with the -wave and -wave models, which are also the same as the Ginzburg-Landau theory.
last version, 10 pages, accepted by PRD
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