Celestial symmetries of black hole horizons
Abstract
We establish a correspondence between the gravitational phase space at null infinity and the subleading phase space near a finite-distance null hypersurface, such as a black hole horizon. Within this framework, we identify the celestial L w 1 + ∞ symmetries in the subleading phase space at the horizon by constructing their canonical generators and imposing self-duality conditions. This leads to an infinite tower of conserved charges in the absence of radiation, revealing new gravitational observables relevant to black hole physics.
Fields of Study & Subjects
Astrophysical Phenomena and Observations
Black Holes and Theoretical Physics
Relativity and Gravitational Theory
Publication details
- Journal / source
- Physical review. D/Physical review. D.
- Publisher
- American Physical Society (APS)
- Volume
- 113
- Issue
- 4
- Publication date
- 2 January 2026
- Language
- EN