Non-minimal Higgs inflation within holographic cosmology
| Autor: | Aatifa Bargach, Mariam Bouhmadi-López, Taoufik Ouali, Farida Bargach |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Inflation (cosmology) Spectral index 010308 nuclear & particles physics media_common.quotation_subject Scalar (mathematics) FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences Cosmology Universe General Relativity and Quantum Cosmology symbols.namesake Higgs field 0103 physical sciences symbols Higgs boson Planck 010306 general physics Mathematical physics media_common |
| Popis: | We derive a Higgs inflationary model in the context of holographic cosmology, where we consider a universe filled with a Higgs field non-minimally coupled to gravity in a slow-roll regime. The amplitude of density (scalar) perturbations is calculated. In this regard, we show that the background and perturbative parameters characterising the inflationary era are related to the standard one through corrections terms. We found that for the e-fold number $N\sim 58$, the spectral index,$n_{r}$, and the tensor-to-scalar ratio,$r$, values are $0.965$ and $0.021$, respectively, which are in agreement with 2018 Planck observational data. However, as soon as we move from $N\sim 58$, the model is ruled out by the current data. 12 pages, 7 figures, accepted for publication in PRD |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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