Abstract:
My talk will focus on the structure of gravity at large distances and especially on how one can get insights on the asymptotically flat structure from the one of Anti-de Sitter spacetimes.
I will start by recalling some basics on the gauge fixing approach to the IR structure of gravity, insisting on the fundamental examples of the Fefferman-Graham and Bondi gauges and on asymptotically AdS and flat spacetimes.
As Ricci flat solutions are usually obtained from a the \Lambda -> 0 limit of Einstein´s spacetimes, I will describe how one can get the flat solution space and flux/balance equations from a careful Laurent expansion
of the AdS energy-momentum tensor and the requirement of the line-element finiteness, the analysis being conducted in a covariant version of the Newman-Unti gauge that will be presented prior to these developments.
Probing the asymptotic structure of 4d Einstein gravity: flat from AdS
16.01.2024 14:00 - 15:30
Organiser:
S. Fredenhagen, D. Grumiller, T. Tran, A. Fiorucci
Location: