Bouncing cosmology in f(R ,T) gravity

被引:78
|
作者
Singh, J. K. [1 ]
Bamba, Kazuharu [2 ]
Nagpal, Ritika [1 ]
Pacif, S. K. J. [3 ]
机构
[1] Univ Delhi, Fac Technol, Netaji Subhas Inst Technol, Dept Math, New Delhi 110078, India
[2] Fukushima Univ, Fac Symbiot Syst Sci, Div Human Support Syst, Fukushima 9601296, Japan
[3] Jamia Millia Islamia, Ctr Theoret Phys, New Delhi 110025, India
关键词
PROBE WMAP OBSERVATIONS; DARK ENERGY; F R; CONSTANT; DYNAMICS; UNIVERSE; LAMBDA;
D O I
10.1103/PhysRevD.97.123536
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A cosmological model with a specific form of the Hubble parameter is constructed in a flat homogeneous, and isotropic background in the framework of f (R, T) gravity, where R is the scalar curvature and T is the trace of the stress-energy-momentum tensor. The proposed functional form of the Hubble parameter is taken in such a way that it fulfills the successful bouncing criteria to find the solution of the gravitational field equations provided the Universe is free from initial singularity. The various constraints on the parameters are involved in the functional form of the Hubble parameter which are analyzed in detail. in addition, we explore physical and geometrical consequences of the model based on the imposed constraints. Furthermore, we demonstrate the bouncing scenario which is realized in our model with some particular values of the model parameters. As a result, we find that all of the necessary conditions are satisfied for a successful bouncing model.
引用
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页数:10
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