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https://www.um.edu.mt/library/oar/handle/123456789/121174
Title: | Perturbations in non-flat cosmology for f(T) gravity |
Authors: | Bahamonde, Sebastian Dialektopoulos, Konstantinos F. Hohmann, Manuel Said, Jackson Pfeifer, Christian Saridakis, Emmanuel N. |
Keywords: | Cosmology Gravitation -- Mathematical models Calculus of tensors General relativity (Physics) Perturbation (Astronomy) Gravitational fields |
Issue Date: | 2023 |
Publisher: | Springer |
Citation: | Bahamonde, S., Dialektopoulos, K. F., Hohmann, M., Said, J. L., Pfeifer, C., & Saridakis, E. N. (2023). Perturbations in non-flat cosmology for f (T) gravity. The European Physical Journal C, 83(3), 193. |
Abstract: | The study of cosmological perturbation theory in f(T) gravity is a topic of great interest in teleparallel gravity since this is one of the simplest generalizations of the theory that modifies the teleparallel equivalent of general relativity. In this work, we explore the possibility of a non-flat FLRW background solution and perform perturbations for positively as well as negatively curved spatial geometries, together with a comparison to the flat case. We determine the generalized behaviour of the perturbative modes for this non-flat FLRW setting for arbitrary f(T) models, when the most general homogeneous and isotropic background tetrads are used. We also identify propagating modes in this setup, and relate this with the case of a flat cosmology. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/121174 |
Appears in Collections: | Scholarly Works - InsSSA |
Files in This Item:
File | Description | Size | Format | |
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Perturbations_in_Non-Flat_Cosmology_for_f(T)_gravity.pdf | 478.89 kB | Adobe PDF | View/Open |
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