Preheating in radiatively corrected φ4 inflation with non-minimal coupling in Palatini formulation

Nilay Bostan

doi:10.17776/csj.892438

EN

Preheating in radiatively corrected φ4 inflation with non-minimal coupling in Palatini formulation

Abstract

We discuss the impact of the preheating stage due to the interaction of the inflaton to fermions in Palatini formulation. In Palatini inflation with large non-minimal coupling, the field is allowed to return to the plateau region during the reheating stage, therefore the average equation of state per oscillations is closer to -1 rather than 1\/3. The incursion in the plateau, however, leads to a highly efficient tachyonic instability, which is able to reheat the Universe in less than one e-fold. By taking prescription II into account, which is discussed in the literature, we calculate the spectral index n_s and the tensor-to-scalar ratio r in the wide range of κ- ξ. We will show the results which are compatible with the data given by the Keck Array/BICEP2 and Planck collaborations.

Keywords

References

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Details

Primary Language

English

Subjects

Classical Physics (Other)

Journal Section

Research Article

Authors

Nilay Bostan ^*
0000-0002-1129-4345
United States

Publication Date

September 24, 2021

Submission Date

March 7, 2021

Acceptance Date

July 20, 2021

Published in Issue

Year 2021 Volume: 42 Number: 3

DOI

https://doi.org/10.17776/csj.892438

IZ

https://izlik.org/JA29GU77YD

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RIS / Bibtex

APA

Bostan, N. (2021). Preheating in radiatively corrected φ4 inflation with non-minimal coupling in Palatini formulation. Cumhuriyet Science Journal, 42(3), 728-734. https://doi.org/10.17776/csj.892438

Öz

Preheating in radiatively corrected φ4 inflation with non-minimal coupling in Palatini formulation

Abstract

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References

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Subjects

Journal Section

Authors

Publication Date

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Acceptance Date

Published in Issue

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