Constant-roll Inflation in Brane Induced Gravity Cosmology
General Relativity and Quantum Cosmology
2022-10-20 v1
Abstract
In this article we study a constant-roll inflationary model in the context of the DGP brane-world cosmology caused by a quintessence scalar field. We determine an analytical solution for the Friedman equation coupled to the equation of motion of the scaler field. The evolution of the primordial scalar and tensor perturbations is also studied. To check the viability of the model we use numerical approaches and plot some figures. Our results for the scalar spectral index and the tensor to scaler ratio show good consistency with observations for given values of model parameters.
Cite
@article{arxiv.2210.10327,
title = {Constant-roll Inflation in Brane Induced Gravity Cosmology},
author = {Arvin Ravanpak and Golnaz Farpour Fadakar},
journal= {arXiv preprint arXiv:2210.10327},
year = {2022}
}
Comments
arXiv admin note: text overlap with arXiv:2201.02666