Anisotropic Universe in f (G, T) Gravity

被引:12
|
作者
Shamir, M. Farasat [1 ]
机构
[1] Natl Univ Comp & Emerging Sci, Dept Sci & Humanities, Lahore Campus, Lahore, Pakistan
关键词
GAUSS-BONNET GRAVITY; DARK ENERGY; F(G) GRAVITY; COSMOLOGICAL MODELS; GENERAL-RELATIVITY; INFLATION; STABILITY; DYNAMICS;
D O I
10.1155/2017/6378904
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
This paper is devoted to investigating the recently introduced f (G, T) theory of gravity, where G is the Gauss-Bonnet term and.. is the trace of the energy-momentum tensor. For this purpose, anisotropic background is chosen and a power law f (G, T) gravity model is used to find the exact solutions of field equations. In particular, a general solution is obtained which is further used to reconstruct some important solutions in cosmological contexts. The physical quantities like energy density, pressure, and equation of state parameter are calculated. A Starobinsky-like f(2) (G, T) model is proposed which is used to analyze the behavior of universe for different values of equation of state parameter. It is concluded that presence of term T in the bivariate function f (G, T) may give many cosmologically important solutions of the field equations.
引用
收藏
页数:10
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