Video URL
https://pirsa.org/16090043Surprising consequence of a positive cosmological constant
Beatrice Bonga Radboud Universiteit Nijmegen
Source RepositoryPIRSA
Collection
Talk Type
Scientific Series
Abstract
The study of isolated systems has been vastly successful in the context of vanishing cosmological constant, $\Lambda = 0$. However, there is no physically useful notion of asymptotics for the universe we inhabit with $\Lambda > 0$. The full non-linear framework is still under development, but some interesting results at the linearized level have been obtained. I will focus on the conceptual subtleties that arise at the linearized level and discuss the quadrupole formula for gravitational radiation.