GIUSTO , Stefano

We construct solutions of IIB supergravity dual to non-supersymmetric states of the D1D5 system. These solutions are constructed as perturbations carrying both left and right moving momentum around the maximally rotating D1D5 ground state at linear order. They are found by extending to the asymptotically flat region the geometry gener- ated in...

The AdS/CFT duality maps supersymmetric heavy operators with conformal dimension of the order of the central charge to asymptotically AdS supergravity solutions. We show that by studying the quadratic fluctuations around such backgrounds it is possible to derive the 4-point correlators of two light and two heavy states in the supergravity...

We derive an explicit expression for the 1/c con- tribution to the Virasoro blocks in 2D CFT in the limit of large c with fixed values of the operators' dimensions. We follow the direct approach of orthonormalising, at order 1/c, the space of the Virasoro descendants to obtain the blocks as a series expansion around z = 0. For generic conformal...

We derive the four-point correlators of scalar operators of dimension one in the supergravity limit of the D1D5 CFT holographically dual to string theory on AdS3×S3×M, with M either T4 or K3. We avoid the use of Witten diagrams but deduce our result from a limit of the heavy-heavy-light-light correlators computed in [1], together with several...

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