Lifshitz quasinormal modes and relaxation from holography
High Energy Physics - Theory
2015-06-11 v1
Abstract
We obtain relaxation times for field theories with Lifshitz scaling and with holographic duals Einstein-Maxwell-Dilaton gravity theories. This is done by computing quasinormal modes of a bulk scalar field in the presence of Lifshitz black branes. We determine the relation between relaxation time and dynamical exponent z, for various values of boundary dimension d and operator scaling dimension. It is found that for d>z+1, at zero momenta, the modes are non-overdamped, whereas for d<=z+1 the system is always overdamped. For d=z+1 and zero momenta, we present analytical results.
Keywords
Cite
@article{arxiv.1503.07457,
title = {Lifshitz quasinormal modes and relaxation from holography},
author = {Watse Sybesma and Stefan Vandoren},
journal= {arXiv preprint arXiv:1503.07457},
year = {2015}
}
Comments
16 pages and 5 figures