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This study investigates the cosmological dynamics of an accelerating universe within the framework of teleparallel gravity using an exponential f(T) functional form. To obtain exact cosmological solutions, a hybrid scale factor is employed…

广义相对论与量子宇宙学 · 物理学 2026-05-27 Rajalakshmi Jena , Vishal M C , Sankarsan Tarai

We discuss conformal issues of pure and extended teleparallel gravity. In particular, we present formulations of conformal transformation in teleparallel gravity. Furthermore, we propose conformal scalar and gauge field theories in…

广义相对论与量子宇宙学 · 物理学 2013-11-19 Kazuharu Bamba , Sergei D. Odintsov , Diego Sáez-Gómez

Teleparallel based cosmological models provide a description of gravity in which torsion is the mediator of gravitation. Several extensions have been made within the so-called Teleparallel equivalent of general relativity which is…

广义相对论与量子宇宙学 · 物理学 2023-01-18 L. K. Duchaniya , S. A. Kadam , Jackson Levi Said , B. Mishra

We consider modified teleparallel gravity, (f(T) gravity), as a framework to explain the present accelerated expansion of the universe. The matter component is assumed to be cold dark matter. To find the explicit form of the function $f$,…

广义相对论与量子宇宙学 · 物理学 2015-06-11 H. Mohseni Sadjadi

We derive an exact $f(T)$ gravity in the absence of ordinary matter in Friedmann-Robertson-Walker (FRW) universe, where $T$ is the teleparallel torsion scalar. We show that vanishing of the energy-momentum tensor $\mathcal{T}^{\mu \nu}$ of…

高能物理 - 理论 · 物理学 2016-10-19 W. El Hanafy , G. L. Nashed

Motivated by the work of Granda and Oliveros [L.N. Granda, A. Oliveros, Phys. Lett. B {\bf 671}, 199 (2009)], we generalize their work to the non-flat case. We study the correspondence between the quintessence, tachyon, K-essence and…

广义相对论与量子宇宙学 · 物理学 2010-04-30 K. Karami , J. Fehri

$f(T,B)$ teleparallel gravity is a recently proposed straightforward generalization of the popular $f(T)$ teleparallel gravity by the incorporation of a boundary term $B=\frac{2}{e}\partial_{i}(e T ^{i}) = \bigtriangledown_{i}T^{i}$ where…

广义相对论与量子宇宙学 · 物理学 2020-08-25 Snehasish Bhattacharjee

Teleparallel theories of gravity have a long history. They include a special case referred to as the Teleparallel Equivalent of General Relativity (TEGR, aka GR$_{\|}$). Recently this theory has been generalized to f(T) gravity. Tight…

广义相对论与量子宇宙学 · 物理学 2013-08-01 Yen Chin Ong , Keisuke Izumi , James M. Nester , Pisin Chen

The teleparallel formulation of gravity theories reveals close structural analogies to electrodynamics, which are more hidden in their usual formulation in terms of the curvature of spacetime. We show how every locally Lorentz invariant…

广义相对论与量子宇宙学 · 物理学 2018-06-05 Manuel Hohmann , Laur Järv , Martin Krššák , Christian Pfeifer

In this article, we explore the comprehensive narrative of cosmic evolution within a cosmological framework by utilizing a novel form of gravity known as generalized symmetric teleparallel gravity, denoted as $f(Q,T)$ gravity. Here, $Q$…

综合物理 · 物理学 2024-09-10 Surajit Das , Sanjay Mandal

We investigate the behavior of the scalar field in $f (R, T )$ gravity (Harko et al., Phys. Rev. D 84, 024020, 2011) inside the structure of a flat FRW cosmological model, where $R$ and $T$ have their usual meaning. The deterministic…

广义相对论与量子宇宙学 · 物理学 2021-08-03 Vinod Kumar Bhardwaj , Anirudh Pradhan , Archana Dixit

In the context of the Teleparallel Equivalent of General Relativity (TEGR) one can obtain an alternative insight into General Relativity, as has been shown in addressing properties as energy, momentum and angular momentum of the…

广义相对论与量子宇宙学 · 物理学 2018-06-11 K. H. C. Castello-Branco , J. F. da Rocha-Neto

The $f(R,T)$ theory of gravitation is an extended theory of gravitation in which the gravitational action contains both the Ricci scalar $R$ and the trace of energy momentum tensor $T$ and hence the cosmological models based on $f(R,T)$…

综合物理 · 物理学 2020-04-14 Nishant Singla , Mukesh Kumar Gupta , Anil Kumar Yadav

Scalar-tensor theories offer the prospect of explaining the cosmological evolution of the Universe through an effective description of dark energy as a quantity with a non-trivial evolution. In this work, we investigate this feature of…

广义相对论与量子宇宙学 · 物理学 2022-08-19 S. A. Kadam , B. Mishra , Jackson Levi Said

Over the past decades, the role of torsion in gravity has been extensively investigated along the main direction of bringing gravity closer to its gauge formulation and incorporating spin in a geometric description. Here we review various…

广义相对论与量子宇宙学 · 物理学 2016-09-09 Yi-Fu Cai , Salvatore Capozziello , Mariafelicia De Laurentis , Emmanuel N. Saridakis

Within the framework of modified teleparallel gravity, we reconstruct a f(T) model corresponding to the QCD ghost dark energy scenario. For a spatially flat FRW universe containing only the pressureless matter, we obtain the time evolution…

综合物理 · 物理学 2014-01-30 K. Karami , A. Abdolmaleki , S. Asadzadeh , Z. Safari

The recently proposed $f(Q, T)$ gravity (Xu et al. Eur. Phys. J. C \textbf{79} (2019) 708) is an extension of the symmetric teleparallel gravity. The gravitational action $L$ is given by an arbitrary function $f$ of the non-metricity $Q$…

广义相对论与量子宇宙学 · 物理学 2020-10-02 Simran Arora , P. K. Sahoo

In the last century, theoretical and experimental developments have established the General Relativity theory as the most successful theory for describing the gravitational phenomenon. On the other hand, in the last two decades, multiple…

广义相对论与量子宇宙学 · 物理学 2025-02-18 Raja Solanki

We review recent developments on cosmology in extended teleparallel gravity, called "$F(T)$ gravity" with $T$ the torsion scalar in teleparallelism. We explore various cosmological aspects of $F(T)$ gravity including the evolution of the…

广义相对论与量子宇宙学 · 物理学 2015-05-05 Kazuharu Bamba

General relativity (GR) characterizes gravity as a geometric properly exhibited as curvature on spacetime. Teleprallelism describes gravity through torsional properties, and can reproduce GR at the level of equations. Similar to f(R)…

广义相对论与量子宇宙学 · 物理学 2017-12-21 Jackson Levi Said