Stability of Accelerating Universe with Linear Equation of State in f (T) Gravity Using Hybrid Expansion Law

被引：31
作者：
Bhoyar, S. R. [1 ]
Chirde, V. R. [2 ]
Shekh, S. H. [3 ]
机构：
[1] Phulsing Naik Mahavidyalaya, Pusad 445216, India
[2] GSG Mahavidyalaya, Umarkhed 445206, India
[3] BN Coll Engn & Technol, Yavatmal 445001, India
来源：
ASTROPHYSICS | 2017年 / 60卷 / 02期
关键词：
Bianchi type-I space-time; linear equation of state; f(T) gravity; hybrid expansion law;
D O I：
10.1007/s10511-017-9480-y
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the dynamics of locally rotationally symmetric and spatially homogeneous Bianchi type-I (LRS) space-time with the linear equation of state filled with a perfect fluid in the framework of f (T) gravity. We apply the gravitational field equations for the linear and quadratic form of f (T) gravity. We determine the aspects of Bianchi type-I space-time by considering the hybrid expansion law (HEL) for the average scale factor that yields power-law and exponential-law cosmologies, in its special cases. It is observed that initially the model is unstable and is then stable in both linear and quadratic case. Also, the universe exhibits transition from deceleration to acceleration phase.
引用
收藏
页码：259 / 272
页数：14
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