Séminaire - Marios Petropoulos : Charges and Dual Charges – a Carrollian Perspective
Description
Marc Henneaux
Collège de France
Champs, cordes et gravité
Année 2022-2023
La structure asymptotique de l'espace-temps (II)
Séminaire - Marios Petropoulos : Charges and Dual Charges – a Carrollian Perspective
Intervenant(s)
Marios Petropoulos, École Polytechnique, Palaiseau, France
Carroll geometries emerge as conformal boundaries of asymptotically flat spacetimes and have come to the forefront with the advent of flat holography. I will introduce these tools, which encompass the Carrollian descendants of the Cotton tensor, and show how they are used for generating towers of electric and magnetic charges. This approach sets the appropriate framework for unravelling the boundary local manifestation of hidden electric/magnetic duality symmetries such as Ehlers' Möbius symmetry present in four-dimensional Ricci-flat spacetimes that enjoy an isometry.
United States
