Optical Conductivity with Holographic Lattices
High Energy Physics - Theory
2017-08-23 v2 Strongly Correlated Electrons
Abstract
We add a gravitational background lattice to the simplest holographic model of matter at finite density and calculate the optical conductivity. With the lattice, the zero frequency delta function found in previous calculations (resulting from translation invariance) is broadened and the DC conductivity is finite. The optical conductivity exhibits a Drude peak with a cross-over to power-law behavior at higher frequencies. Surprisingly, these results bear a strong resemblance to the properties of some of the cuprates.
Cite
@article{arxiv.1204.0519,
title = {Optical Conductivity with Holographic Lattices},
author = {Gary T. Horowitz and Jorge E. Santos and David Tong},
journal= {arXiv preprint arXiv:1204.0519},
year = {2017}
}
Comments
22 pages, 10 figures. v2: typos fixed; slight variation in phase noted