Swampland criteria and reheating predictions in scalar-tensor inflation

Abolhassan Mohammadi; Tayeb Golanbari; Jamil Enayati; Shahram Jalalzadeh; Salah Nasri; Khaled Saaidi

doi:10.1142/S0218271822500791

Swampland criteria and reheating predictions in scalar-tensor inflation

Abolhassan Mohammadi, Tayeb Golanbari, Jamil Enayati, Shahram Jalalzadeh, Salah Nasri, Khaled Saaidi

Department of Physics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The slow-roll inflation scenario is studied in the frame of the scalar-tensor theory of gravity, where the scalar field has a nonminimal coupling to the geometric part. After deriving the main dynamical and observable parameter, the consistency of the model with data is considered and we could determine the constants of the model. Then, using the result, the swampland criteria are studied and it is revealed that they are perfectly satisfied. Finally, reheating phase is considered and it is found that the reheating phase lasts for a few e-fold of expansion, and the universe warms up to a high temperature.

Original language	English
Article number	2250079
Journal	International Journal of Modern Physics D
Volume	31
Issue number	10
DOIs	https://doi.org/10.1142/S0218271822500791
Publication status	Published - Jul 15 2022

Keywords

Slow-roll inflation
reheating
reheating temperature
scalar-tensor theory
swampland criteria

ASJC Scopus subject areas

Mathematical Physics
Astronomy and Astrophysics
Space and Planetary Science

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10.1142/S0218271822500791

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title = "Swampland criteria and reheating predictions in scalar-tensor inflation",

abstract = "The slow-roll inflation scenario is studied in the frame of the scalar-tensor theory of gravity, where the scalar field has a nonminimal coupling to the geometric part. After deriving the main dynamical and observable parameter, the consistency of the model with data is considered and we could determine the constants of the model. Then, using the result, the swampland criteria are studied and it is revealed that they are perfectly satisfied. Finally, reheating phase is considered and it is found that the reheating phase lasts for a few e-fold of expansion, and the universe warms up to a high temperature.",

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AU - Mohammadi, Abolhassan

AU - Golanbari, Tayeb

AU - Enayati, Jamil

AU - Jalalzadeh, Shahram

AU - Nasri, Salah

AU - Saaidi, Khaled

PY - 2022/7/15

Y1 - 2022/7/15

N2 - The slow-roll inflation scenario is studied in the frame of the scalar-tensor theory of gravity, where the scalar field has a nonminimal coupling to the geometric part. After deriving the main dynamical and observable parameter, the consistency of the model with data is considered and we could determine the constants of the model. Then, using the result, the swampland criteria are studied and it is revealed that they are perfectly satisfied. Finally, reheating phase is considered and it is found that the reheating phase lasts for a few e-fold of expansion, and the universe warms up to a high temperature.

AB - The slow-roll inflation scenario is studied in the frame of the scalar-tensor theory of gravity, where the scalar field has a nonminimal coupling to the geometric part. After deriving the main dynamical and observable parameter, the consistency of the model with data is considered and we could determine the constants of the model. Then, using the result, the swampland criteria are studied and it is revealed that they are perfectly satisfied. Finally, reheating phase is considered and it is found that the reheating phase lasts for a few e-fold of expansion, and the universe warms up to a high temperature.

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KW - reheating

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KW - scalar-tensor theory

KW - swampland criteria

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Swampland criteria and reheating predictions in scalar-tensor inflation

Abstract

Keywords

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