Bianchi type universe and superpotential reconstruction in scalar-tensor cosmology

被引:0
|
作者
Sharif, M. [1 ]
Waheed, Saira [1 ]
机构
[1] Univ Punjab, Dept Math, Lahore 54590, Pakistan
关键词
Superpotential approach; Scalar field; Field potentials; DARK ENERGY; I UNIVERSE; GRAVITY; MODELS; POTENTIALS; INFLATION;
D O I
10.1007/s10509-014-1952-5
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The nature of scalar field potentials plays a dominant role in the cosmological dynamics of scalar-tensor gravity. The superpotential reconstruction technique is an interesting way to determine the nature of scalar field potentials by taking the Hubble parameter as a function of scalar field. The present study is an application of this technique in the gravitational framework of scalar-tensor gravity using LRS Bianchi type I universe. We explore the nature of scalar field potentials for some particular cases. It is found that the potentials in all cases turn out to be of polynomial nature and the anisotropy parameter m classifies its degree. The graphical behavior of the directional Hubble parameter shows monotonic behavior which is in contrast to the FRW case.
引用
收藏
页码:909 / 919
页数:11
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