A model for cosmological perturbations in affine gravity
General Relativity and Quantum Cosmology
2024-01-17 v1 High Energy Physics - Theory
Mathematical Physics
Differential Geometry
math.MP
Abstract
In this paper, we present the cosmological perturbation formalism for theories within the framework of affine gravity. These theories are distinguished by their connection, devoid of any metric. Our approach involves segregating perturbations into symmetric and antisymmetric components (related to torsion), each further decomposed into irreducible elements, namely scalars, pseudoscalars, vectors, pseudovectors, 2-tensors, and 3-tensors. Finally, we have fully addressed the gauge freedom in this context.
Cite
@article{arxiv.2401.08198,
title = {A model for cosmological perturbations in affine gravity},
author = {Oscar Castillo-Felisola and Radouane Gannouji and Manuel Morocho-López and Marcelo Rozas-Rojas},
journal= {arXiv preprint arXiv:2401.08198},
year = {2024}
}
Comments
Written using revtex, 12 pages