Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série APC-TH
Domaines hep-th
Date Mardi 15 Janvier 2019
Heure 14:00
Institut APC
Salle 646 A - Mondrian
Nom de l'orateur Petropoulos
Prenom de l'orateur Marios
Addresse email de l'orateur
Institution de l'orateur CPHT - Ecole Polytechnique
Titre Carrollian fluids and flat holography
Résumé Various extensions of the AdS/CFT correspondence beyond the realm of asymptotically anti-de Sitter spacetimes have been proposed. Among those, the asymptotically flat spacetimes have played a distinguished and recently revived role. With the exception of three spacetime dimensions, and despite the wide interest and the precise knowledge of the asymptotic symmetries, no concrete proposal was available. Following a macroscopic path, we reconsider the asymptotically flat limit of AdS/CFT andconclude that duals of Ricci-flat spacetimes in the sense of fluid/gravity correspondence are Carrollian fluids defined at null infinity. This approach requires to set up Carrollian hydrodynamics as the limit of relativistic hydrodynamics at vanishing velocity of light. We perform this in full generality using Randers-Papapetrou frames. The method is illustrated for asymptotically flat Robinson-Trautman or Kerr-Taub-NUT families reconstructed using viscous or perfect, time-dependent or stationary Carrollian fluids defined on the Carrollian boundary.
Numéro de preprint arXiv
Fichiers attachés

Pour obtenir l' affiche de ce séminaire : [ Postscript | PDF ]

[ Annonces ]    [ Abonnements ]    [ Archive ]    [ Aide ]    [ ]
[ English version ]