Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 193 |
| Fachzeitschrift | European Physical Journal C |
| Jahrgang | 83 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 6 März 2023 |
| Extern publiziert | Ja |
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.
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in: European Physical Journal C, Jahrgang 83, Nr. 3, 193, 06.03.2023.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Perturbations in non-flat cosmology for f(T) gravity
AU - Bahamonde, Sebastian
AU - Dialektopoulos, Konstantinos F.
AU - Hohmann, Manuel
AU - Said, Jackson Levi
AU - Pfeifer, Christian
AU - Saridakis, Emmanuel N.
N1 - Publisher Copyright: © 2023, The Author(s).
PY - 2023/3/6
Y1 - 2023/3/6
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85149950433&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-023-11322-3
DO - 10.1140/epjc/s10052-023-11322-3
M3 - Article
VL - 83
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 3
M1 - 193
ER -