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hep-th2025
de Sitter corrections to supertranslation Ward identity and soft graviton theorem
Pratik Chattopadhyay, Divyesh N. Solanki
We study the tree-level scattering of massless scalars followed by an emission of a soft graviton in the small compact region inside the static patch in de Sitter space. We derive…
hep-th2025★ 1 cited
Perturbative soft graviton theorems in de Sitter spacetime
Divyesh N. Solanki, Pratik Chattopadhyay, Srijit Bhattacharjee
We consider soft graviton scattering for a theory where Einstein's gravity is minimally coupled to a scalar field in the presence of a cosmological constant, i.e. in a background d…