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Celestial IR divergences and the effective action of supertranslation modes
- Source :
- Journal of High Energy Physics, Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-25 (2021)
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Infrared divergences in perturbative gravitational scattering amplitudes have been recently argued to be governed by the two-point function of the supertranslation Goldstone mode on the celestial sphere. We show that the form of this celestial two-point function simply derives from an effective action that also controls infrared divergences in the symplectic structure of General Relativity with asymptotically flat boundary conditions. This effective action finds its natural place in a path integral formulation of a celestial conformal field theory, as we illustrate by re-deriving the infrared soft factors in terms of celestial correlators. Our analysis relies on a well-posed action principle close to spatial infinity introduced by Comp\`ere and Dehouck.<br />Comment: 24 pages, one figure
- Subjects :
- Global Symmetries
High Energy Physics - Theory
Physics
Nuclear and High Energy Physics
General relativity
Conformal field theory
Space-Time Symmetries
FOS: Physical sciences
Effective Field Theories
Celestial sphere
QC770-798
General Relativity and Quantum Cosmology (gr-qc)
General Relativity and Quantum Cosmology
Action (physics)
Gravitation
Classical mechanics
High Energy Physics - Theory (hep-th)
Nuclear and particle physics. Atomic energy. Radioactivity
Path integral formulation
Classical Theories of Gravity
Effective action
Symplectic geometry
Subjects
Details
- ISSN :
- 10298479
- Volume :
- 2021
- Database :
- OpenAIRE
- Journal :
- Journal of High Energy Physics
- Accession number :
- edsair.doi.dedup.....01259cc48b8713b0cd4d4c4f1b725782