Deformed PP-waves from the Lunin-Maldacena Background
Abstract
In this article we study a pp-wave limit of the Lunin-Maldacena background. We show that the relevant string theory background is a homogeneous pp-wave. We obtain the string spectrum. The dual field theory is a deformation of N=4 super Yang-Mills theory. We have shown that, for a class of operators, at O(g_{YM}^2) and at leading order in N, all contributions to the anomalous dimension come from F-terms. We are able to identify the operator in the deformed super Yang-Mills which is dual to the lowest string mode. By studying the undeformed theory we are able to provide some evidence, directly in the field theory, that a small set of nearly protected operators decouple. We make some comments on operators in the Yang-Mills theory that are dual to excited string modes.
Cite
@article{arxiv.hep-th/0505227,
title = {Deformed PP-waves from the Lunin-Maldacena Background},
author = {Robert de Mello Koch and Jeff Murugan and Jelena Smolic and Milena Smolic},
journal= {arXiv preprint arXiv:hep-th/0505227},
year = {2009}
}
Comments
22 pages, 1 figure; Final version to appear in JHEP