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arXiv · hep-th/0502224

Spectral Flow on the Higgs Branch and AdS/CFT Duality

J. Erdmenger·J. Grosse·Z. Guralnik
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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.

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J. Erdmenger, J. Grosse, Z. Guralnik. 2005-06-06. Spectral Flow on the Higgs Branch and AdS/CFT Duality. https://doi.org/10.1088/1126-6708%2F2005%2F06%2F052

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