Quintessential constant-roll inflation. (arXiv:2107.04756v4 [astro-ph.CO] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Shokri_M/0/1/0/all/0/1">Mehdi Shokri</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sadeghi_J/0/1/0/all/0/1">Jafar Sadeghi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gashti_S/0/1/0/all/0/1">Saeed Noori Gashti</a>

We investigate a single field model in the context of the constant-roll
inflation in which inflaton moves down to the minimum point of the potential
with a constant rate of rolling. We use a quintessential inflationary model
obtained by a Lorentzian function which is dependent on the number of e-folds.
We present the inflationary analysis for the model and find the observational
constraints on the parameters space using the observations of CMB anisotropies
textit{i.e.} the Planck and Keck/array datasets. We find the observationally
acceptable values of the Width of the Lorentzian function as
$0.3<Gammaleq0.5$ at the $68%$ CL and $Gammaleq0.3$ at the $95%$ CL when
$xi=120$, $|beta|=0.02$ and $N=60$. Also, we acquire the observationally
favoured values of the amplitude of the Lorentzian function as $400<xileq600$
at the $68%$ CL and $xileq400$ at the $95%$ CL when $Gamma=0.1$,
$|beta|=0.02$ and $N=60$. Moreover, we study the model from the Weak Gravity
Conjecture approach using the swampland criteria.

We investigate a single field model in the context of the constant-roll
inflation in which inflaton moves down to the minimum point of the potential
with a constant rate of rolling. We use a quintessential inflationary model
obtained by a Lorentzian function which is dependent on the number of e-folds.
We present the inflationary analysis for the model and find the observational
constraints on the parameters space using the observations of CMB anisotropies
textit{i.e.} the Planck and Keck/array datasets. We find the observationally
acceptable values of the Width of the Lorentzian function as
$0.3<Gammaleq0.5$ at the $68%$ CL and $Gammaleq0.3$ at the $95%$ CL when
$xi=120$, $|beta|=0.02$ and $N=60$. Also, we acquire the observationally
favoured values of the amplitude of the Lorentzian function as $400<xileq600$
at the $68%$ CL and $xileq400$ at the $95%$ CL when $Gamma=0.1$,
$|beta|=0.02$ and $N=60$. Moreover, we study the model from the Weak Gravity
Conjecture approach using the swampland criteria.

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