Spectral Flow on the Higgs Branch and AdS/CFT Duality
High Energy Physics - Theory
2009-11-11 v2
Abstract
We use AdS/CFT duality to study the large N_c limit of the meson spectrum on the Higgs branch of a strongly coupled, N=2 supersymmetric SU(N_c) gauge theory with N_f =2 fundamental hypermultiplets. In the dual supergravity description, the Higgs branch is described by SU(2) instanton configurations on D7-branes in an AdS background. We compute the spectral flow parameterized by the size of a single instanton. In the large N_c limit, there is a sense in which the flow from zero to infinite instanton size, or Higgs VEV, can be viewed as a closed loop. We show that this flow leads to a non-trivial rearrangement of the spectrum.
Cite
@article{arxiv.hep-th/0502224,
title = {Spectral Flow on the Higgs Branch and AdS/CFT Duality},
author = {J. Erdmenger and J. Grosse and Z. Guralnik},
journal= {arXiv preprint arXiv:hep-th/0502224},
year = {2009}
}
Comments
v2; 16 pages, 3 figures, LaTeX + JHEP class, 3 refs added, accepted for publication by JHEP