paper

Pseudogap and time reversal breaking in a holographic superconductor

arXiv:0805.3898 · doi:10.1088/1126-6708/2008/08/035

Abstract

Classical SU(2) Yang-Mills theory in 3+1 dimensional anti-de Sitter space is known to provide a holographic dual to a 2+1 system that undergoes a superconducting phase transition. We study the electrical conductivity and spectral density of an isotropic superconducting phase. We show that the theory exhibits a pseudogap at low temperatures and a nonzero Hall conductivity. The Hall conductivity is possible because of spontaneous breaking of time reversal symmetry.

1+16 pages. 4 figures. PDFLaTeX. v2: Corrections to the conductivity and statements about uplift

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