Absence of Power-Law Mid-Infrared Conductivity in Gravitational Crystals
arXiv:1506.06769 · doi:10.1007/JHEP10(2015)163
Abstract
We compute conductivities of strongly-interacting and non-uniform charge densities dual to inhomogeneous anti-de Sitter--black hole spacetimes. Backreacting bulk scalars with periodic boundary profiles, we construct generalizations of Reissner-Nordström-AdS that interpolate between those used in two previous studies --- one that reports power-law scaling for the boundary optical conductivity and one that does not. We find no evidence for power-law scaling of the conductivity, thereby corroborating the previous negative result that gravitational crystals are insufficient to generate the power-law mid-infrared conductivity observed in cuprate superconductors.
9 pages, 4 figures, 7 images
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Cited by in corpus (15)
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