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hep-th2025
Resummation of Cosmological Correlators and their UV-Regularization
Matthias Nowinski, Ivo Sachs
Cosmological correlators are important observables in cosmology. They are often approximated by de Sitter space correlators. In this paper, we give a first precise diagrammatical c…
hep-th2025
Cosmological Dressing Rules
Chandramouli Chowdhury, Arthur Lipstein, Joe Marshall +2
The basic observables in cosmology are known as in-in correlators. Recent calculations have revealed that in-in correlators in four dimensional de Sitter space exhibit hidden simpl…