English

Barrow HDE model for Statefinder diagnostic in non-flat FRW universe

General Relativity and Quantum Cosmology 2021-08-02 v1

Abstract

In this work we study a non-flat Friedmann-Robertson-Walker universe filled with a pressure-less dark matter (DM) and Barrow holographic dark energy (BHDE) whose IR cutoff is the apparent horizon. Among various DE models, (BHDE) model shows the dynamical enthusiasm to discuss the universe's transition phase. According to the new research, the universe transitioned smoothly from a decelerated to an accelerated period of expansion in the recent past. We exhibit that the development of qq relies upon the type of spatial curvature. Here we study the equation of state (EoS) parameter for the BHDE model to determine the cosmological evolution for the non-flat universe. The (EoS) parameter and the deceleration parameter (DP) shows a satisfactory behaviour, it does not cross the the phantom line. We also plot the statefinder diagram to characterize the properties of the BHDE model by taking distinct values of barrow exponent \triangle. Moreover, we likewise noticed the BHDE model in the (ωDωD)(\omega_{D}-\omega_{D}^{'}) plane, which can furnish us with a valuable, powerful finding to the mathematical determination of the statefinder. In the statefinder trajectory, this model was found to be able to reach the ΛCDM\Lambda CDM fixed point.

Keywords

Cite

@article{arxiv.2103.08339,
  title  = {Barrow HDE model for Statefinder diagnostic in non-flat FRW universe},
  author = {Archana Dixit and Vinod Kumar Bharadwaj and Anirudh Pradhan},
  journal= {arXiv preprint arXiv:2103.08339},
  year   = {2021}
}

Comments

19 pages, 21 figures