Work

Logarithmic supertranslations as asymptotic symmetries of gravity at null infinity

Year: 2026

Type: preprint

Abstract: 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 symmetries at null infinity. We also show that the logarithmic supertranslation charges match at the ``corner" where spatial infinity and null infinity meet. This fully establishes that the asymptotic symmetry group of gravity in the asymptotically flat context contains the logarithmic supertranslations.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2609.11785

Authors: Fuentealba, Oscar, Henneaux, Marc, Robert, Sébastien, Zwikel, Céline

Institutions: Université Libre de Bruxelles, Collège de France, Université Paris Sciences et Lettres, International Solvay Institutes

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Fonds De La Recherche Scientifique - FNRS, Agencia Nacional de Investigación y Desarrollo

Awards: ASPECTS OF THE ASYMPTOTIC STRUCTURE OF SPACETIME: FROM SPATIAL TO NULL INFINITY, G2971967494, G3329171033, G7316740004, G7904157711

OpenAlex ID: W7212313244

Cites: 45

Cited by:

Related to: 10