Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series APC-TH
Subjects hep-th
Date Tuesday 15 January 2019
Time 14:00
Institute APC
Seminar Room 646 A - Mondrian
Speaker's Last Name Petropoulos
Speaker's First Name Marios
Speaker's Email Address
Speaker's Institution CPHT - Ecole Polytechnique
Title Carrollian fluids and flat holography
Abstract 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.
arXiv Preprint Number

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