Conductivities for Hyperscaling Violating Geometries
High Energy Physics - Theory
2015-06-19 v3 Strongly Correlated Electrons
Abstract
We show that many results about holographic conductivities in geometries with hyperscaling violating scaling can be reproduced from simple scaling laws in the dual field theory. We show that the electro-magnetic response of probe branes in these systems require at least one additional scaling parameter Phi beyond the usual dynamical exponent z and hyperscaling violating exponent theta, as also pointed out in earlier work. We show that the scaling exponents can be chosen in such a way that the temperature dependence of DC conductivity and Hall angle in strange metals can be reproduced.
Cite
@article{arxiv.1405.2926,
title = {Conductivities for Hyperscaling Violating Geometries},
author = {Andreas Karch},
journal= {arXiv preprint arXiv:1405.2926},
year = {2015}
}
Comments
16 pages; v2: references added; v3: comparison to Einstein-Maxwell-Dilaton system added; version to appear in JHEP