Multifield positivity bounds for inflation

Abstract Positivity bounds represent nontrivial limitations on effective field theories (EFTs) if those EFTs are to be completed into a Lorentz-invariant, causal, local, and unitary framework. While such positivity bounds have been applied in a wide array of physical contexts to obtain useful constr...

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Bibliographic Details
Main Authors: Marat Freytsis, Soubhik Kumar, Grant N. Remmen, Nicholas L. Rodd
Format: Article
Language:English
Published: SpringerOpen 2023-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2023)041