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Superconformal Inflationary -Attractors
Renata Kallosh, Andrei Linde, Diederik Roest
Recently a broad class of superconformal inflationary models was found leading to a universal observational prediction and . Here we generalize this class of…
Journeys Through Antigravity?
John Joseph M. Carrasco, Wissam Chemissany, Renata Kallosh
A possibility of journeys through antigravity has recently been proposed, with the suggestion that Weyl-invariant extension of scalars coupled to Einstein gravity allows for an una…
Hidden Superconformal Symmetry of the Cosmological Evolution
Renata Kallosh, Andrei Linde
In the superconformal formulation of supergravity, the standard supergravity action appears as a result of spontaneous symmetry breaking when the conformal compensator scalar field…
On the Supersymmetric Completion of Gravity and Cosmology
Sergio Ferrara, Renata Kallosh, Antoine Van Proeyen
We revisit and clarify the supersymmetric versions of gravity, in view of the renewed interest to these models in cosmology. We emphasize that the content of the dual stan…
A universal attractor for inflation at strong coupling
Renata Kallosh, Andrei Linde, Diederik Roest
We introduce a novel non-minimal coupling between gravity and the inflaton sector. Remarkably, for large values of this coupling all models asymptote to a universal attractor. This…
Multi-field Conformal Cosmological Attractors
Renata Kallosh, Andrei Linde
We describe a broad class of multi-field inflationary models with spontaneously broken conformal invariance. It generalizes the recently discovered class of cosmological attractors…