Cosmographic and matter bounce scenario in modified torsion gravity

被引:4
|
作者
Jawad, Abdul [1 ,2 ]
Ikram, Ayesha [3 ]
Karim, Sidra [2 ]
Rani, Shamaila [1 ,2 ]
机构
[1] Zhejiang Univ Technol, Inst Theoret Phys & Cosmol, Hangzhou 310023, Peoples R China
[2] COMSATS Univ Islamabad, Dept Math, Lahore Campus, Lahore 54000, Pakistan
[3] Univ Education, Dept Math, Div Sci & Technol, Lahore 54000, Pakistan
关键词
Bouncing cosmology; Energy conditions; f(T; tau); gravity; PROBE WMAP OBSERVATIONS; COSMOLOGICAL CONSTANT; LAMBDA;
D O I
10.1016/j.cjph.2024.05.011
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this manuscript, we investigate the matter bounce cosmological implications in the context of f(T, tau) gravity (T represents the torsion scalar whereas tau is the trace of the energy-momentum tensor). We construct the field equations for spatially flat homogeneous and isotropic space-time with perfect fluid configuration. We consider the two particular forms of scale factor inspired by loop-quantum cosmology to investigate the matter bounce mechanism. In this regard, we examine the graphical behavior of cosmological as well as dynamical parameters at and in the neighborhood of bounce point. Furthermore, the stability via perturbation technique and energy conditions are also discussed. It is concluded that all the cosmographic tests favor the bouncing cosmology for an appropriate choice of model parameters. It is worth mentioning that considered models are stable and energy conditions are violated at the bouncing point as well as in its vicinity leading to a successful bouncing scenario.
引用
收藏
页码:275 / 288
页数:14
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