Chameleon perfect scalar field as a geometric correction in $f(R)$ gravity
General Relativity and Quantum Cosmology
2023-03-30 v1
Abstract
In this work, we derive the analytical form for a model that describes a perfect scalar field by assuming the existence of a chameleon mechanism. Based on four statements, at the background and perturbative level, it is possible to relate the extra terms from this theory as a geometrical perfect fluid term, whose has been expressed as possible candidates to explain the nature of the dark sector, and possibly, in the case of a perfect scalar chameleon during inflation, satisfy the big bang nucleosynthesis (BBN) constraints until late times.
Keywords
Cite
@article{arxiv.2303.16815,
title = {Chameleon perfect scalar field as a geometric correction in $f(R)$ gravity},
author = {Laura L. Parrilla and Celia Escamilla-Rivera},
journal= {arXiv preprint arXiv:2303.16815},
year = {2023}
}
Comments
9 pages. Contribution to "Gravity, Cosmology and Astrophysics - A Journey of Exploration and Discovery with Female Pioneers". Springer Nature