The AdS/Ricci-flat correspondence and some applications

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• Marco M. Caldarelli (Southampton)
• Friday 07 June 2013, 13:00-14:00
• Pavilion B Potter Room (B1.19).

If you have a question about this talk, please contact Dr Joan Camps.

I will present a remarkable connection between solutions to vacuum Einstein gravity and to anti-de Sitter (AdS) gravity. More precisely, for every asymptotically anti–de Sitter (AdS) solution compactified on a torus there is a corresponding Ricci-flat solution obtained by replacing the torus by a sphere, performing a Weyl rescaling of the metric and appropriately analytically continuing the dimension of the torus/sphere. This operation maps Minkowski spacetime to AdS on a torus and AdS black branes to Schwarzschild black branes. When acting on the known solutions describing the hydrodynamic regime in AdS/CFT, it yields the stress tensor of asymptotically flat black branes to second order, which are constrained by the parent conformal symmetry. I will conclude with two simple applications of this correspondence: the analysis of the Gregory-Laflamme unstable modes of a black string, and the study the fluid dual to Rindler spacetime.

This talk is part of the DAMTP Friday GR Seminar series.

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