paper

Linear Resistivity from Non-Abelian Black Holes

arXiv:1405.3714 · doi:10.1007/JHEP11(2014)066

Abstract

Starting with the holographic p-wave superconductor, we show how to obtain a finite DC conductivity through a non-abelian gauge transformation. The translational symmetry is preserved. We obtain phenomenological similarities with high temperature cuprate superconductors. Our results suggest that a lattice or impurities are not essential to produce a finite DC resistivity with a linear temperature dependence. An analogous field theory calculation for free fermions, presented in the appendix, indicates our results may be a special feature of strong interactions.

27 pages, 12 figures; v4: An analogous field theory calculation added. Small changes to abstract, introduction, discussion and reference. To appear in JHEP

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