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...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321325000203 |
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| 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 |