Revisiting f(R) gravity's rainbow: Inflation and primordial fluctuations

Yoelsy Leyva; Giovanni Otalora

doi:10.1088/1475-7516/2023/04/030

Revisiting f(R) gravity's rainbow: Inflation and primordial fluctuations

Yoelsy Leyva
, Giovanni Otalora

Departamento de Física

Universidad de Tarapacá

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

8 Citas (Scopus)

Resumen

We study inflation and the generation of primordial fluctuations in f(R) gravity's rainbow. We calculate the cosmological perturbations and then the scalar and tensor primordial power spectrum. We contrast the predictions of the model with the current observational data from PLANCK and BICEP/Keck. Particularly, we found new results for the scalar spectral index n_s and the tensor-to-scalar ratio r along with new observational constraints on the rainbow functions.

Idioma original	Inglés
Número de artículo	030
Publicación	Journal of Cosmology and Astroparticle Physics
Volumen	2023
N.º	4
DOI	https://doi.org/10.1088/1475-7516/2023/04/030
Estado	Publicada - 1 abr 2023

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abstract = "We study inflation and the generation of primordial fluctuations in f(R) gravity's rainbow. We calculate the cosmological perturbations and then the scalar and tensor primordial power spectrum. We contrast the predictions of the model with the current observational data from PLANCK and BICEP/Keck. Particularly, we found new results for the scalar spectral index ns and the tensor-to-scalar ratio r along with new observational constraints on the rainbow functions.",

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Revisiting f(R) gravity's rainbow: Inflation and primordial fluctuations

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