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Deformed PP-waves from the Lunin-Maldacena Background

Robert de Mello Koch·Jeff Murugan·Jelena Smolic·Milena Smolic
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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.

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Robert de Mello Koch, Jeff Murugan, Jelena Smolic, Milena Smolic. 2005-08-03. Deformed PP-waves from the Lunin-Maldacena Background. https://doi.org/10.1088/1126-6708%2F2005%2F08%2F072

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