Inflationary attractors from a non-canonical kinetic term

TL;DR

This paper demonstrates how various inflation models with non-canonical kinetic terms can produce a wide range of observable attractors, complicating the differentiation of inflationary theories.

Contribution

It provides a method to derive different inflation models from a general non-canonical kinetic framework, showing the versatility in generating observable attractors.

Findings

T-model, E-model, and Hilltop inflation can be derived from non-canonical kinetic terms.

Any attractor in the $n_s$ and $r$ parameter space is achievable.

The presence of attractors makes distinguishing inflation models more challenging.

Abstract

We show explicitly how the T-model, E-model, and Hilltop inflations are obtained from the inflation models with a non-canonical kinetic term and an arbitrary potential. By this method, any attractor of observables $n_s$ and $r$ is possible. The presence of attractors poses a challenge to differentiate inflation models.