Leading Loops in Cosmological Correlators

Cosmological correlators from inflation are often generated at tree level and hence loop contributions are bounded to be small corrections by perturbativity. Here we discuss a scenario where this is not the case. Recently, it has been shown that for any number of scalar fields of any mass, the parit...

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Veröffentlicht in:	arXiv.org 2023-11
Hauptverfasser:	Gordon Lee, Mang Hei, McCulloch, Ciaran, Pajer, Enrico
Format:	Artikel
Sprache:	eng
Schlagworte:	Correlation Correlators Inflation (cosmology) Kinematics Parity Rational functions Scalars Scale invariance Signal to noise ratio Wave functions
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