Work

Supertranslations from Scattering Amplitudes

Year: 2025

Type: article

Abstract: On shell methods have found a new application to local observables such as asymptotic radiation fields and gravitational waveforms. While these observables are invariant under small gauge transformations, they are known to depend on a choice of asymptotic gauge; in gravity on asymptotically Minkowski spacetimes, this is a choice of Bondi-Van der Burg-Metzner-Sachs frame. In this Letter, we provide a method for capturing these supertranslations, to all orders in perturbation theory, using the on shell framework of scattering amplitudes.

Source: Physical Review Letters

DOI: 10.1103/fxdk-5qwc

Authors: Asaad Elkhidir, Donal O’Connell, Radu Roiban

Institutions: University of Edinburgh, Pennsylvania State University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funders: U.S. Department of Energy, Science and Technology Facilities Council