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hep-th2025
Soft unification of exceptional effective field theories in de Sitter space
Zong-Zhe Du
We uncover a surprising universal soft behaviour (USB) of a de Sitter (dS) S-matrix for \textit{all} exceptional effective field theories (EFTs) in dS space, stemming from the rece…
hep-th2025★ 1 cited
New Exceptional EFTs in de Sitter Space from Generalised Energy Conservation
Zong-Zhe Du, David Stefanyszyn
We discover a surprising relationship between exceptional effective field theories (EFTs) in de Sitter space and a notion of \textit{generalised energy conservation} (GEC) of an S-…