This article contains an overview of some recent attempts at understanding supergravity and string duals of four dimensional gauge theories using the AdS/CFT correspondence. We discuss the generalâ€¦ (More)

We extend the pp-wave correspondence to a non supersymmetric example. The model is the type 0B string theory on the pp-wave Râ€“R background. We explicitly solve the model and give the spectrum ofâ€¦ (More)

We present a fully backreacted D3-D7 supergravity solution dual to the Klebanov-Strassler cascading gauge theory coupled to a large number of massive dynamical flavors in the Veneziano limit. Theâ€¦ (More)

Grassmann-valued Dirac fields together with the electromagnetic field (the pseudoclassical basis of QED) are reformulated on spacelike hypersurfaces in Minkowski spacetime and then restricted toâ€¦ (More)

A new spinning particle with a definite sign of the energy is defined on spacelike hypersurfaces after a critical discussion of the standard spinning particles. They are the pseudoclassical basis ofâ€¦ (More)

We consider the addition of a large number of massive dynamical flavors to the Klebanov-Witten theory, the quiver gauge theory describing the low energy dynamics of Nc D3-branes at the conifoldâ€¦ (More)

We study the spectra of scalar and vector mesons in four dimensional strongly coupled SQCD-like theories in the Veneziano limit. The gauge theories describe the low energy dynamics of intersecting D3â€¦ (More)

We study certain exclusive decays of high spin mesons into mesons in models of large Nc quenched QCD at strong coupling using string theory. The rate of the process is calculated by studying theâ€¦ (More)

We perform here a critical analysis of some non-supersymmetric gravity solutions in Type 0B string theory. We first consider the most general configuration of parallel N electric and M magneticâ€¦ (More)