Confronting quasi-exponential inflation with WMAP seven

TL;DR

This paper tests quasi-exponential inflation models against WMAP seven data using Hamilton Jacobi formalism, finding good agreement and potential detectability of tensor-to-scalar ratio in PLANCK.

Contribution

It introduces a formalism for quasi-exponential inflation models and compares their predictions with WMAP seven data using CAMB.

Findings

Models agree well with WMAP seven observations.

Tensor-to-scalar ratio may be detectable in PLANCK.

Formalism provides a new way to analyze quasi-exponential inflation.

Abstract

We confront quasi-exponential models of inflation with WMAP seven years dataset using Hamilton Jacobi formalism. With a phenomenological Hubble parameter, representing quasi exponential inflation, we develop the formalism and subject the analysis to confrontation with WMAP seven using the publicly available code CAMB. The observable parameters are found to fair extremely well with WMAP seven. We also obtain a ratio of tensor to scalar amplitudes which may be detectable in PLANCK.