Cosmological infrared subtractions & infrared-safe computables

Cosmological observables in perturbation theory turn out to be plagued with infrared divergences, which represents both a conceptual and computational challenge. In this paper we present a proof of concept for a systematic procedure to remove these divergences in a large class of scalar cosmological...

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Bibliographic Details
Main Author: Paolo Benincasa, Francisco Vazão
Format: Article
Language:English
Published: SciPost 2025-06-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.18.6.176
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