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AdS/Ricci-flat correspondence and the Gregory-Laflamme instability
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). APC, Université Paris Diderot.
2013 (English)In: Physical Review D, ISSN 1550-7998, Vol. 87, no 6, 061502- p.Article in journal (Refereed) Published
Abstract [en]

We show that 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 (as in generalized dimensional reduction). In particular, it maps Minkowski spacetime to AdS on a torus, the holographic stress energy tensor of AdS to the stress energy tensor due to a brane localized in the interior of spacetime and AdS black branes to (asymptotically flat) Schwarzschild black branes. Applying it to the known solutions describing the hydrodynamic regime in AdS/CFT, we derive the hydrodynamic stress tensor of asymptotically flat black branes to second order, which is constrained by the parent conformal symmetry. We compute the dispersion relation of the Gregory-Laflamme unstable modes through cubic order in the wave number, finding remarkable agreement with numerical data. In the case of no transverse sphere, AdS black branes are mapped to Rindler spacetime and the second-order transport coefficients of the fluid dual to Rindler spacetime are recovered. DOI: 10.1103/PhysRevD.87.061502

Place, publisher, year, edition, pages
2013. Vol. 87, no 6, 061502- p.
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:su:diva-89536DOI: 10.1103/PhysRevD.87.061502ISI: 000316392000001OAI: diva2:619252
EU, European Research Council, ERC-2011-StG 279363-HiDGR


Available from: 2013-05-02 Created: 2013-04-29 Last updated: 2013-05-02Bibliographically approved

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