The subtle simplicity of cosmological correlators

Abstract We investigate cosmological correlators for conformally coupled ϕ 4 theory in four-dimensional de Sitter space. These in-in correlators differ from scattering amplitudes for massless particles in flat space due to the spacelike structure of future infinity in de Sitter. They also require a...

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Bibliographic Details
Main Authors: Chandramouli Chowdhury, Arthur Lipstein, Jiajie Mei, Ivo Sachs, Pierre Vanhove
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP03(2025)007
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