Holographic Lifshitz flows and the null energy condition
High Energy Physics - Theory
2012-06-07 v1
Abstract
We study asymptotically Lifshitz spacetimes and the constraints on flows between Lifshitz fixed points imposed by the null energy condition. In contrast with the relativistic holographic c-theorem, where the effective AdS radius, L, is monotonically decreasing in the IR, for Lifshitz backgrounds we find that both L and z may flow in either direction. We demonstrate this with several numerical examples in a phenomenological model with a massive gauge field coupled to a real scalar.
Cite
@article{arxiv.1206.1047,
title = {Holographic Lifshitz flows and the null energy condition},
author = {James T. Liu and Zhichen Zhao},
journal= {arXiv preprint arXiv:1206.1047},
year = {2012}
}
Comments
29 pages, REVTeX, 5 figures