English

Exploring cosmological evolution and constraints in $f(T)$ teleparallel gravity

Cosmology and Nongalactic Astrophysics 2024-09-30 v1

Abstract

This study explores the extension of teleparallel gravity within the framework of general relativity, introducing an algebraic function f(T)f(T) dependent on the torsion scalar TT. Motivated by the teleparallel formulation, we investigate cosmological implications, employing the simplest parametrization of the dark energy equation of state. Our chosen f(T)f(T) function, f(T)=α(T)nf(T)=\alpha(-T)^n, undergoes stringent constraints using recent observational data (H(z)H(z), SNeIa, BAO, and CMB). The model aligns well with cosmic dynamics, exhibiting quintessence behavior. The evolution of the deceleration parameter, the behavior of dark energy components, and the Om(z)Om(z) diagnostic further reveal intriguing cosmological phenomena, emphasizing the model's compatibility with quintessence scenarios.

Keywords

Cite

@article{arxiv.2409.10757,
  title  = {Exploring cosmological evolution and constraints in $f(T)$ teleparallel gravity},
  author = {M. Koussour and A. Altaibayeva and S. Bekov and F. Holmurodov and S. Muminov and J. Rayimbaev},
  journal= {arXiv preprint arXiv:2409.10757},
  year   = {2024}
}

Comments

Physics of the Dark Universe accepted version

R2 v1 2026-06-28T18:46:58.784Z