Astrophysics > Cosmology and Nongalactic Astrophysics
[Submitted on 1 Oct 2016 (v1), last revised 7 Feb 2019 (this version, v6)]
Title:Minimal inflationary cosmologies and constraints on reheating
View PDFAbstract:With the growing consensus on simple power law inflation models not being favored by the PLANCK observation, dynamics for the non-standard form of the inflaton potential gain significant interest in the recent past. In this paper, we analyze in great detail classes of phenomenologically motivated inflationary models with non-polynomial potential which are the generalization of the potential introduced in \cite{mhiggs}. After the end of inflation, inflaton field will coherently oscillate around its minimum. Depending upon the initial amplitude of the oscillation and coupling parameters standard parametric resonance phenomena will occur. Therefore, we will study how the inflationary model parameters play an important role in understanding the resonant structure of our model under study. Subsequently, the universe will go through the perturbative reheating phase. However, without any specific model consideration, we further study the constraints on our models based on model independent reheating constraint analysis.
Submission history
From: Pankaj Saha [view email][v1] Sat, 1 Oct 2016 19:34:40 UTC (770 KB)
[v2] Thu, 9 Feb 2017 13:57:59 UTC (769 KB)
[v3] Thu, 27 Jul 2017 12:48:18 UTC (1,609 KB)
[v4] Fri, 28 Jul 2017 06:16:05 UTC (1,465 KB)
[v5] Thu, 12 Apr 2018 18:41:26 UTC (964 KB)
[v6] Thu, 7 Feb 2019 18:31:22 UTC (964 KB)
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