Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture

In this study, we explore the dynamics of warm inflation within a non-minimally coupled Peccei–Quinn (PQ) framework and evaluate its compatibility with the de Sitter Swampland Conjecture. Our model incorporates a PQ scalar field that is non-minimally coupled to gravity, facilitating inflation throug...

Full description

Saved in:
Bibliographic Details
Main Authors: Jureeporn Yuennan, Phongpichit Channuie, Davood Momeni
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321325000203
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832087855401271296
author Jureeporn Yuennan
Phongpichit Channuie
Davood Momeni
author_facet Jureeporn Yuennan
Phongpichit Channuie
Davood Momeni
author_sort Jureeporn Yuennan
collection DOAJ
description In this study, we explore the dynamics of warm inflation within a non-minimally coupled Peccei–Quinn (PQ) framework and evaluate its compatibility with the de Sitter Swampland Conjecture. Our model incorporates a PQ scalar field that is non-minimally coupled to gravity, facilitating inflation through a dissipative process that sustains a thermal bath, thereby distinguishing it from conventional cold inflation. We analyze the dissipation coefficient defined as Γ(T,σ)=CnTnσpM1−n−p, where Cn is a dimensionless constant, M is a mass scale, and n and p are numerical powers. Our investigation focuses on three specific cases: (a) A temperature-dependent dissipation coefficient with an inverse relation, Γ=C−1σ2/T, where n=−1 and p=2; (b) A dissipation coefficient linear in field ϕ, Γ=C0σ, where n=0 and p=1; and (c) A dissipation coefficient linear in temperature T, Γ=C1T, where n=1 and p=0. By examining the slow-roll dynamics in these inflationary scenarios, we derive essential cosmological parameters, including the scalar spectral index and the tensor-to-scalar ratio. We compare our results with the latest observational data from Planck 2018. Our findings suggest that the model is consistent with observational constraints while simultaneously satisfying the de Sitter Swampland conditions.
format Article
id doaj-art-e5d555fd1c3c433f9fb532e7daa7ff17
institution Kabale University
issn 0550-3213
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Nuclear Physics B
spelling doaj-art-e5d555fd1c3c433f9fb532e7daa7ff172025-02-06T05:11:03ZengElsevierNuclear Physics B0550-32132025-03-011012116810Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjectureJureeporn Yuennan0Phongpichit Channuie1Davood Momeni2Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University, Nakhon Si Thammarat, 80280, ThailandSchool of Science, Walailak University, Nakhon Si Thammarat, 80160, Thailand; College of Graduate Studies, Walailak University, Nakhon Si Thammarat, 80160, Thailand; Corresponding author.Northeast Community College, 801 E Benjamin Ave Norfolk, NE 68701, USAIn this study, we explore the dynamics of warm inflation within a non-minimally coupled Peccei–Quinn (PQ) framework and evaluate its compatibility with the de Sitter Swampland Conjecture. Our model incorporates a PQ scalar field that is non-minimally coupled to gravity, facilitating inflation through a dissipative process that sustains a thermal bath, thereby distinguishing it from conventional cold inflation. We analyze the dissipation coefficient defined as Γ(T,σ)=CnTnσpM1−n−p, where Cn is a dimensionless constant, M is a mass scale, and n and p are numerical powers. Our investigation focuses on three specific cases: (a) A temperature-dependent dissipation coefficient with an inverse relation, Γ=C−1σ2/T, where n=−1 and p=2; (b) A dissipation coefficient linear in field ϕ, Γ=C0σ, where n=0 and p=1; and (c) A dissipation coefficient linear in temperature T, Γ=C1T, where n=1 and p=0. By examining the slow-roll dynamics in these inflationary scenarios, we derive essential cosmological parameters, including the scalar spectral index and the tensor-to-scalar ratio. We compare our results with the latest observational data from Planck 2018. Our findings suggest that the model is consistent with observational constraints while simultaneously satisfying the de Sitter Swampland conditions.http://www.sciencedirect.com/science/article/pii/S0550321325000203
spellingShingle Jureeporn Yuennan
Phongpichit Channuie
Davood Momeni
Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture
Nuclear Physics B
title Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture
title_full Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture
title_fullStr Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture
title_full_unstemmed Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture
title_short Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture
title_sort warm non minimally coupled peccei quinn inflation and de sitter swampland conjecture
url http://www.sciencedirect.com/science/article/pii/S0550321325000203
work_keys_str_mv AT jureepornyuennan warmnonminimallycoupledpecceiquinninflationanddesitterswamplandconjecture
AT phongpichitchannuie warmnonminimallycoupledpecceiquinninflationanddesitterswamplandconjecture
AT davoodmomeni warmnonminimallycoupledpecceiquinninflationanddesitterswamplandconjecture