Bouncing cosmological model with general relativistic hydrodynamics in extended gravity

被引:3
|
作者
Shaikh, A. Y. [1 ]
Tarai, Sankarsan [2 ]
Tripathy, S. K. [3 ]
Mishra, B. [4 ]
机构
[1] Indira Gandhi Mahavidyalaya, Dept Math, Ralegaon 445402, India
[2] Utkal Univ, Dept Phys, Ctr High Energy & Condensed Matter Phys, Bhubaneswar 751004, India
[3] Indira Gandhi Inst Technol, Dept Phys, Dhenkanal 759146, Odisha, India
[4] Birla Inst Technol & Sci Pilani, Dept Math, Hyderabad Campus, Hyderabad 500078, India
关键词
Extended gravity; bouncing cosmology; general relativistic hydrodynamics; stability analysis; ENERGY COMPONENT; DARK; CONSEQUENCES; CONSTANT; EQUATION; UNIVERSE;
D O I
10.1142/S0219887822501936
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this paper, in an extended theory of gravity, we have presented bouncing cosmological model at the backdrop of an isotropic, homogeneous space-time, in the presence of general relativistic hydrodynamics (GRH). The scale factor has been chosen in such a manner that with appropriate normalization, the quintom bouncing scenario can be assessed. Accordingly, the bounce occurs at t = 0 and the corresponding Hubble parameter vanishes at the bounce epoch. The equation of state (EoS) parameter and the energy conditions of the model have been analyzed. The violation of strong energy condition further supports the behavior of extended gravity. As the bouncing cosmology suffers with instability, this model also shows the similar behavior.
引用
收藏
页数:14
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