Inflation and primordial fluctuations in F (T) gravity's rainbow

Yoelsy Leyva; Carlos Leiva; Giovanni Otalora; Joel Saavedra

doi:10.1103/PhysRevD.105.043523

Inflation and primordial fluctuations in F (T) gravity's rainbow

Yoelsy Leyva, Carlos Leiva, Giovanni Otalora, Joel Saavedra

INSTITUTE OF PHYSICS

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Abstract

We study slow-roll inflation and the generation of primordial fluctuations in F(T) gravity's rainbow. We obtain the second order action for scalar and tensor perturbations and then calculate the primordial power spectrum for them. Thus, after calculating the inflationary observables up to first order in slow-roll approximation, namely the scalar spectral index ns and the tensor-to scalar ratio r, we confront the predictions of the model with the current PLANCK and BICEP/Keck data.

Original language	English
Article number	043523
Journal	Physical Review D
Volume	105
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevD.105.043523
State	Published - 15 Feb 2022

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abstract = "We study slow-roll inflation and the generation of primordial fluctuations in F(T) gravity's rainbow. We obtain the second order action for scalar and tensor perturbations and then calculate the primordial power spectrum for them. Thus, after calculating the inflationary observables up to first order in slow-roll approximation, namely the scalar spectral index ns and the tensor-to scalar ratio r, we confront the predictions of the model with the current PLANCK and BICEP/Keck data.",

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Inflation and primordial fluctuations in F (T) gravity's rainbow

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