Scalar perturbation in warm tachyon inflation in LQC in light of Plank and BICEP2

TL;DR

This paper investigates warm tachyon inflation within loop quantum cosmology, calculating primordial perturbation spectra and constraining model parameters using recent observational data from Planck, WMAP9, and BICEP2.

Contribution

It introduces a detailed analysis of warm tachyon inflation in LQC with exponential potential, including perturbation spectra and observational constraints.

Findings

Primordial spectra are derived in the slow-roll approximation.

Tensor-to-scalar ratio and spectral index expressions are obtained.

Model parameters are constrained by recent observational data.

Abstract

We study warm-tachyon inflationary universe model in the context of the effective field theory of loop quantum cosmology. In slow-roll approximation the primordial perturbation spectrums for this model are calculated. We also obtain the general expressions of the tensor-to-scalar ratio, scalar spectral index. We develop this model by using exponential potential, the characteristics of this model is calculated in great details. The parameters of the model are restricted by recent observational data from Planck, WMAP9 and BICEP2.