Browsing by Author "Cremonesi, Stefano"
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Item Backreacting Flavors in the Klebanov-Strassler Background(2007-09-17T07:39:50Z) Benini, Francesco; Canoura, Felipe; Cremonesi, Stefano; Nunez, Carlos; Ramallo, Alfonso V.; Physics; Elementary Particle Theoryn this paper we present new analytic solutions of pure Type IIB supergravity plus D7-branes describing the addition of an arbitrary number of flavors to the Klebanov-Tseytlin and Klebanov-Strassler backgrounds. We provide a precise field theory dual and a detailed analysis of the duality cascade which describes its RG flow. Matchings of beta functions and anomalies between the field theory and the string setup are presented. We give an understanding of Seiberg duality as a large gauge transformation on the RR and NSNS potentials. We also analyze the UV behavior of the field theory, that as suggested by the string background can be associated with a duality wall.Item On Stable Non-Supersymmetric Vacua at the Bottom of Cascading Theories(2006-06-20T09:07:19Z) Argurio, Riccardo; Bertolini, Matteo; Closset, Cyril; Cremonesi, Stefano; Physics; Elementary Particle TheoryWe consider a wide class of cascading gauge theories which usually lead to runaway behaviour in the IR, and discuss possible deformations of the superpotential at the bottom of the cascade which stabilize the runaway direction and provide stable non-supersymmetric vacua. The models we find may allow for a weakly coupled supergravity analysis of dynamical supersymmetric breaking in the context of the gauge/string correspondence.Item Unquenched Flavors in the Klebanov-Witten Model(2007-08-30T12:05:53Z) Benini, Francesco; Canoura, Felipe; Cremonesi, Stefano; Nunez, Carlos; Ramallo, Alfonso V.; Physics; Elementary Particle TheoryUsing AdS/CFT, we study the addition of an arbitrary number of backreacting flavors to the Klebanov-Witten theory, making many checks of consistency between our new Type IIB plus branes solution and expectations from field theory. We study generalizations of our method for adding flavors to all N=1 SCFTs that can be realized on D3-branes at the tip of a Calabi-Yau cone. Also, general guidelines suitable for the addition of massive flavor branes are developed.