The holographic dilaton
High Energy Physics - Theory
2015-06-16 v3 High Energy Physics - Phenomenology
Abstract
We study a set of examples of holographic duals to theories with spontaneous breaking of conformal invariance in different dimensions. The geometries are domain walls interpolating between two AdS spaces, with a non-trivial background scalar field dual to a relevant operator. We comment on a subtlety in the low momentum expansion pointed out in arXiv:1304.3051 for the case of background gravity and revise the dynamical gravity results of arXiv:1207.0006, where the dilaton pole was missing in the scalar-scalar and tensor-tensor two-point functions. We compute the energy-momentum tensor and scalar two-point functions and show that there is indeed a massless dilaton pole.
Cite
@article{arxiv.1307.2572,
title = {The holographic dilaton},
author = {Carlos Hoyos and Uri Kol and Jacob Sonnenschein and Shimon Yankielowicz},
journal= {arXiv preprint arXiv:1307.2572},
year = {2015}
}
Comments
28 pages. v2: references added. v3: published version in JHEP