Inflation in f(R,ϕ) Gravity with Exponential Model
Joint Authors
Zubair, M.
Kousar, Farzana
Saleem, Rabia
Source
Advances in High Energy Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-16
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
We are taking action of f(R) gravity with a nonminimal coupling to a massive inflaton field.
A f(R,ϕ) model is chosen which leads to the scalar-tensor theory which can be transformed to Einstein frame by conformal transformation.
To avoid the vagueness of the frame dependence, we evaluate the exact analytical solutions for inflationary era in Jordan frame and find a condition for graceful exit from inflation.
Furthermore, we calculate the perturbed parameters (i.e., number of e-folds, slow-roll parameters, scalar and tensor power spectra, corresponding spectral indices, and tensor to scalar ratio).
It is showed that the tensor power spectra lead to blue tilt for this model.
The trajectories of the perturbed parameters are plotted to compare the results with recent observations.
American Psychological Association (APA)
Kousar, Farzana& Saleem, Rabia& Zubair, M.. 2018. Inflation in f(R,ϕ) Gravity with Exponential Model. Advances in High Energy Physics،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1118019
Modern Language Association (MLA)
Kousar, Farzana…[et al.]. Inflation in f(R,ϕ) Gravity with Exponential Model. Advances in High Energy Physics No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1118019
American Medical Association (AMA)
Kousar, Farzana& Saleem, Rabia& Zubair, M.. Inflation in f(R,ϕ) Gravity with Exponential Model. Advances in High Energy Physics. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1118019
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118019