Tachyon Warm-Intermediate Inflationary Universe Model in High Dissipative Regime

preprint2012arXivOpen access

Abstract

We consider tachyonic warm-inflationary models in the context of intermediate inflation. We derive the characteristics of this model in slow-roll approximation and develop our model in two cases, 1- For a constant dissipative parameter ΓΓ. 2- ΓΓ as a function of tachyon field ϕϕ. We also describe scalar and tensor perturbations for this scenario. The parameters appearing in our model are constrained by recent observational data. We find that the level of non-Gaussianity for this model is comparable with non-tachyonic model.

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