A Simple Holographic Insulator
High Energy Physics - Theory
2014-10-29 v2
Abstract
We present a simple holographic model of an insulator. Unlike most previous holographic insulators, the zero temperature infrared geometry is completely nonsingular. Both the low temperature DC conductivity and the optical conductivity at zero temperature satisfy power laws with the same exponent, given by the scaling dimension of an operator in the IR. Changing a parameter in the model converts it from an insulator to a conductor with a standard Drude peak.
Keywords
Cite
@article{arxiv.1406.4188,
title = {A Simple Holographic Insulator},
author = {Eric Mefford and Gary T. Horowitz},
journal= {arXiv preprint arXiv:1406.4188},
year = {2014}
}
Comments
14 pages, 6 figures; v2: references added