Can teleparallel f(T) models play a bridge between early and late time Universe?

Author:

Kavya N S1ORCID,Mishra Sai Swagat2ORCID,Sahoo P K2ORCID,Venkatesha V1ORCID

Affiliation:

1. Department of P.G. Studies and Research in Mathematics, Kuvempu University , Shankaraghatta, Shivamogga 577451, Karnataka , India

2. Department of Mathematics, Birla Institute of Technology and Science-Pilani , Hyderabad Campus, Hyderabad-500078 , India

Abstract

ABSTRACT The ability of Big Bang Nucleosynthesis theory to accurately predict the primordial abundances of helium and deuterium, as well as the baryon content of the Universe, is considered one of the most significant achievements in modern physics. In the present study, we consider two highly motivated hybrid $f(T)$ models and constrain them using the observations from the Big Bang Nucleosynthesis era. In addition, using late-time observations of Cosmic Chronometers and Gamma-Ray Bursts, the ranges of the model parameters are confined which are in good agreement with early time bounds. Subsequently, the common ranges obtained from the analysis for early and late time are summarized. Further, we verify the intermediating epochs by investigating the profiles of cosmographic parameters using the model parameter values from the common range. From this study, we find the considered teleparallel models are viable candidates to explain the primordial-intermediating-present epochs.

Funder

DST

Council of Scientific and Industrial Research

Science and Engineering Research Board

Publisher

Oxford University Press (OUP)

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