Statut  Confirmé 
Série  RENCTHEO 
Domaines  hepth 
Date  Jeudi 31 Mars 2016 
Heure  10:00 
Institut  IHP 
Salle  Hermite 
Nom de l'orateur  Emparan 
Prenom de l'orateur  Roberto 
Addresse email de l'orateur  
Institution de l'orateur  U. Barcelona 
Titre  Black holes in the 1/D expansion: Hydroelastic complementarity 
Résumé  When the number of dimensions is very large, the gravitational field of a black hole is strongly localized near the horizon. Therefore in this limit the black hole can be effectively identified with a surface in an undistorted background geometry. The Einstein equations determine the equations that this 'effective membrane' must satisfy, which we have obtained for a large family of black branes. We find that black branes evolve as viscous fluids, but when they settle down they are naturally viewed as solutions of an elastic soapbubble theory. The two views are complementary: the same variable is regarded in one case as the energy density of the fluid, in the other as the deformation of the elastic membrane. 
Numéro de preprint arXiv  
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