Positivity from Cosmological Correlators

Abstract Effective field theories in flat space and in anti-de Sitter space are constrained by causality and unitarity, often in the form of positivity bounds. Similar bounds have been harder to demonstrate in cosmological backgrounds, where the roles of unitarity and causality are more obscure. For...

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Bibliographic Details
Main Authors: Daniel Green, Yiwen Huang, Chia-Hsien Shen, Daniel Baumann
Format: Article
Language:English
Published: SpringerOpen 2024-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP04(2024)034