4 papers
Logarithmic supertranslations as asymptotic symmetries of gravity at null infinity
Oscar Fuentealba, Marc Henneaux, Sébastien Robert +1
Logarithmic supertranslations have been shown recently to be symmetries of the gravitational field at spatial infinity. We extend this work by proving explicitly that they are also…
Conservation law of super-Lorentz charges across spatial infinity
Geoffrey Compère, Sébastien Robert
Under assumptions compatible with generic gravitational scattering, the vacuum relativistic gravitational field is entirely determined at leading order in the large radius expansio…
A proof of conservation laws in gravitational scattering: tails and breaking of peeling
Geoffrey Compère, Sébastien Robert
We propose a definition of asymptotically flat spacetimes that is consistent with both null infinities and compatible with known properties of gravitational scattering, incoming an…
Scalar, vector and tensor fields on with arbitrary sources: harmonic analysis and antipodal maps
Geoffrey Compère, Sébastien Robert
The scalar, vector and tensor spherical harmonics on three-dimensional de Sitter spacetime are defined and analyzed. Each harmonic defines two sets of asymptotic data on the two-sp…