Seminarium Teorii Względności i Grawitacji

Our talk will start with a (hopefully) pedagogical introduction to the topic of asymptotically de Sitter spacetimes. Afterward, we will construct 'conserved' charges a'la Wald and Zoupas at a conformal infinity and prove their uniqueness under a natural set of assumptions. We will finish with a small comment on how to distinguish the de Sitter group within a group of all asymptotic symmetries. Zoom meeting id: 814 7211 6408 Passcode: 795365