194 citations · 3.1k across the 104 of their papers we have counts for
3 papers · 2 filters
Leading order CFT analysis of multi-scalar theories in d>2
Alessandro Codello, Mahmoud Safari, Gian Paolo Vacca +1
We investigate multi-field multicritical scalar theories using CFT constraints on two- and three-point functions combined with the Schwinger-Dyson equation. This is done in general…
Back-Reaction of Super-Hubble Cosmological Perturbations Beyond Perturbation Theory
Robert Brandenberger, Leila L. Graef, Giovanni Marozzi +1
We discuss the effect of super-Hubble cosmological fluctuations on the locally measured Hubble expansion rate. We consider a large bare cosmological constant in the early universe…
A geometrical instability for ultra-light fields during inflation?
Michele Cicoli, Veronica Guidetti, Francisco G. Pedro +1
Westudythebehaviourofisocurvatureperturbationsinnon-linearsigmamodels which naturally emerge in supergravity and string inflationary scenarios. We focus on the case of negatively c…