Gauge theory–gravity duality predicts that the shear viscosity of N= 4 supersymmetric SU
(Nc) Yang–Mills plasma at temperature T in the limit of large Nc and large't Hooft coupling …

A bstract We investigate the analytic structure of thermal energy-momentum tensor
correlators at large but finite coupling in quantum field theories with gravity duals. We …

We use the entropy function formalism to study the effect of the Gauss-Bonnet term on the
entropy of spherically symmetric extremal black holes in heterotic string theory in four …

We consider corrections to the ratio of the shear viscosity to the entropy density in strongly
coupled non-Abelian plasmas using the AdS/CFT correspondence. In particular, higher …

We compare the metric and the Palatini formalism to obtain the Einstein equations in the
presence of higher-order curvature corrections that consist of contractions of the Riemann …

A bstract We construct a family of type IIB string backgrounds that are deformations of AdS
3× S 3× T 4 with a “squashed” AdS 3× S 3 metric supported by a combination of NSNS and …

We discuss string theory α′ corrections in the dual description of the expanding boost
invariant N= 4 supersymmetric Yang–Mills plasma at strong coupling. We compute finite't …

We construct fractional branes in Landau-Ginzburg orbifold categories and study their
behavior under marginal closed string perturbations. This approach is shown to be more …

A bstract Dynamical evolution of thin shells composed by different kinds of degrees of
freedom collapsing within asymptotically AdS spaces is explored with the aim of …

We examine the Euclidean action approach, as well as that of Wald, to the entropy of black
holes in asymptotically AdS spaces. From the point of view of holography these two …