BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Carrollian momenta from anti de Sitter -  Marios Petropoulos (Ecol
 e Polytechnique)
DTSTART:20260512T150000Z
DTEND:20260512T160000Z
UID:TALK246379@talks.cam.ac.uk
CONTACT:Professor Maciej Dunajski
DESCRIPTION:Defining an energy-momentum tensor for asymptotically flat spa
 cetimes seems to be of interest in its own right\, or for possible hologra
 phic applications. That said\, the role it could play is less clear than f
 or anti de Sitter\, bearing in mind that in the flat case an infinite numb
 er of data are needed on scri to reconstruct a solution. I will show that 
 besides the Carrollian geometric structure at null infinity\, this infinit
 e set dubbed Carrollian momenta emerge as the Laurent coefficients of the 
 AdS energy-momentum tensor expanded in powers of the cosmological constant
 . This analysis highlights the role of the boundary Cotton tensor and its 
 involvement in duality properties such as electric-magnetic\, Ehlers\, etc
 .
LOCATION:CMS MR11
END:VEVENT
END:VCALENDAR