Year: 2025
Type: article
Abstract: A bstract Carrollian holography is a framework for flat space holography, suggesting that gravity in asymptotically flat spacetime in D dimensions is dual to a conformal Carrollian field theory in D – 1 dimensions living at null infinity. In this work, we elaborate on the definition of Carrollian amplitudes for massless scalar fields in general dimensions and provide explicit expressions for the two-, three-, and four-point functions. We show that these amplitudes naturally arise from Lorentzian holographic correlators in AdS/CFT through a correspondence between the flat space limit in the bulk and the Carrollian limit at the boundary. Finally, we use the relation between Carrollian and celestial holography to derive explicit expressions for celestial amplitudes in D dimensions, which are reinterpreted as correlators of the celestial CFT in D − 2 dimensions.
Source: Journal of High Energy Physics
Institution: University of Oxford
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415475241