A study of bouncing cosmology in framework of f(T, T) gravity with probing of cosmographic parameters

Zubair M., Farooq M., Gudekli E.

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, vol.19, no.09, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 09
  • Publication Date: 2022
  • Doi Number: 10.1142/s0219887822501353
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Metadex, zbMATH, Civil Engineering Abstracts
  • Keywords: Gravitation, modified gravity, bouncing cosmology, f(T,T) gravity, pseudo Rip, cosmography, DARK, UNIVERSE, INFLATION, MODELS, STARS
  • Istanbul University Affiliated: Yes


This paper is devoted to explore bouncing cosmology in f(T,T) modified gravity. In the background of f(T,T) modified theory with T being Torsion scalar and T being the trace of energy-momentum tensor, the Hubble parameter is considered for the isotropic, flat, and homogenous universe. The standard bouncing scale factor has employed the exponential term to unify bounce with late-time acceleration. Phase portrait analysis reveals us that Minkowskian origin transfers to de Sitter origin in (H, (H)over dot)-plane and as past infinite time t ->-infinity double right arrow a(t) -> 0 and (H, (H)over dot) -> constant which corresponds to some physical cosmological scenarios. Since field equations of f(T,T) gravity are of second order, a one-dimensional autonomous system has been extracted. Finally, outcomes have been plotted graphically, and any type of singular behavior has not been experienced. The study of the equation of state parameter against cosmic time reveals that phantom phase is quite significant for both models. The inertial force in terms of Hubble parameter and cosmic time gives rise to pseudo Rip. The study of cosmographic parameters tells us that the present model corresponds to Lambda CDM at a large value of cosmic time.