Multiple-Trace Operators and Non-Local String Theories
High Energy Physics - Theory
2009-11-07 v2
Abstract
We propose that a novel deformation of string perturbation theory, involving non-local interactions between strings, is required to describe the gravity duals of field theories deformed by multiple-trace operators. The new perturbative expansion involves a new parameter, which is neither the string coupling nor the coefficient of a vertex operator on the worldsheet. We explore some of the properties of this deformation, focusing on a special case where the deformation in the field theory is exactly marginal.
Cite
@article{arxiv.hep-th/0105309,
title = {Multiple-Trace Operators and Non-Local String Theories},
author = {Ofer Aharony and Micha Berkooz and Eva Silverstein},
journal= {arXiv preprint arXiv:hep-th/0105309},
year = {2009}
}
Comments
21 pages, harvmac big. v2: references added; larger branch of QFT moduli space included; comments on graviton scattering added