On Holographic Insulators and Supersolids
High Energy Physics - Theory
2015-10-05 v2 Strongly Correlated Electrons
Superconductivity
Abstract
We obtain holographic realizations for systems that have strong similarities to Mott insulators and supersolids, after examining the ground states of Einstein-Maxwell-scalar systems. The real part of the AC conductivity has a hard gap and a discrete spectrum only. We add momentum dissipation to resolve the delta function in the conductivity due to translational invariance. We develop tools to directly calculate the Drude weight for a large class of solutions and to support our claims. Numerical RG flows are also constructed to verify that such saddle points are IR fixed points of asymptotically AdS_4 geometries.
Cite
@article{arxiv.1503.03481,
title = {On Holographic Insulators and Supersolids},
author = {Elias Kiritsis and Jie Ren},
journal= {arXiv preprint arXiv:1503.03481},
year = {2015}
}
Comments
52 pages, jheppub, 15 figures; v2: minor corrections, references added