Nonminimal coupling and inflationary attractors

Abstract

We show explicitly how the T model, E model, and Hilltop inflations are obtained from the general scalar-tensor theory of gravity with arbitrary conformal factors in the strong coupling limit. We argue that $\xi$ attractors can give any observables $n_s$ and $r$ by this method. The existence of attractors imposes a challenge to distinguish different models.

5 figures, add more discussions on f(R) model, PRD in press

References in corpus (5)

• The Standard Model Higgs boson as the inflaton
• The Unity of Cosmological Attractors
• Does Current Data Prefer a Non-minimally Coupled Inflaton?
• A model-independent fit to Planck and BICEP2 data
• Phenomenological approaches of inflation and their equivalence

Cited by in corpus (8)

• Frame-dependence of higher-order inflationary observables in scalar-tensor theories
• Inflationary $\alpha$-attractors from $F(R)$ Gravity
• Primordial black holes and secondary gravitational waves from inflationary model with a non-canonical kinetic term
• Inflationary Attractors Predictions for Static Neutron Stars in the Mass-Gap Region
• Unification of inflation and dark matter in the Higgs-Starobinsky model
• Inflationary $\alpha -$attractors and $F(R)$ gravity
• Inflationary attractors from a non-canonical kinetic term
• Inflationary attractors from nonminimal coupling