A note on causality in the bulk and stability on the boundary
High Energy Physics - Theory
2015-06-26 v2
Abstract
By carefully analyzing the radial part of the wave-equation for a scalar field in AdS, we show that for a particular range of boundary conditions on the scalar field, the radial spectrum contains a bound state. Using the AdS/CFT correspondence, we interpret this peculiar phenomenon as being dual to an unstable double trace deformation of the boundary conformal field theory. We thus show how the bulk theory holographically detects whether a boundary perturbation is stable.
Cite
@article{arxiv.hep-th/0308044,
title = {A note on causality in the bulk and stability on the boundary},
author = {Jan Troost},
journal= {arXiv preprint arXiv:hep-th/0308044},
year = {2015}
}
Comments
7 pages; v2: reference added, PLB version