Relaxing inflation models with nonminimal coupling: A general study
| Autor: | Kodama, Tatsuki, Takahashi, Tomo |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
High Energy Physics - Theory
General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics (astro-ph.CO) High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Physical Review D. 105 |
| ISSN: | 2470-0029 2470-0010 |
| Popis: | We investigate the predictions of inflation models with a non-minimal coupling to gravity for inflationary observables such as the spectral index and tensor-to-scalar ratio in a general setting. We argue that, depending on the relation between the Jordan frame potential and a function characterizing the non-minimal coupling, one can classify the model into three categories each of which gives distinctive predictions for the inflationary observables. We derive general predictions for each class and also investigate some explicit models to discuss how the general features arise. Our results would be useful to design an inflation model consistent with observational constraints with a non-minimal coupling to gravity. 35 pages, 13 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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