Unquenched flavors in the Klebanov-Strassler theory

TL;DR

This paper provides an analytic supergravity solution incorporating unquenched flavors in the Klebanov-Strassler background, revealing a duality wall and elucidating the correspondence between Seiberg duality and gauge transformations.

Contribution

It introduces a new analytic solution for adding flavors to the Klebanov-Strassler background and explores the resulting RG flow and duality wall phenomena.

Findings

Presence of a duality wall in the UV of the gauge theory

Correspondence between Seiberg duality and gauge transformations

Analytic solution for unquenched flavors in supergravity

Abstract

We present an analytic solution of type IIB supergravity plus D7-branes, describing the addition of any number of flavors to the Klebanov-Strassler background. The dual field theory and its self-similar RG flow, described by a cascade of Seiberg dualities also in the presence of flavors, are discussed. The solution indicates that the dual gauge theory enjoys a duality wall in the UV. We stress the correspondence between Seiberg duality on the field theory side, and large gauge transformations on the RR and NSNS potentials on the gravity side. This contribution is mostly based on arxiv:0706.1238.