Speaker
Wojciech Kamiński
Description
I will describe joint work with Adam Bac, Jurek Lewandowski and Michalina Broda about Wald-Zoupas charges in asymptotically de Sitter spacetimes. Wald-Zoupas construction gives a definition of asymptotic charges in gravity provided that some natural choice of
renormalization of presymplectic current exists. Interestingly such current comes from conformal Einstein's equations. In dimension 4, it is given by special choice of presymplectic current for Bach equations and Yang-Mills equations for conformal Cartan connection.
