论文标题
以F(r)重力的功能形式弹跳宇宙学模型
Bouncing cosmological models in a functional form of F(R) gravity
论文作者
论文摘要
我们已经研究了与F(R)重力理论的各向同性和均匀时空中的一些弹跳宇宙学模型。已经研究了两种功能形式的F(r)。动态参数与cosmographic参数一起得出和分析。这两个模型中的分析都显示出弹跳场景的发生。还显示了两种模型中强大的能量条件的侵犯。从稳定的角度来看,我们已经分析了F_R = DF/DR相对于宇宙时间的行为,并且两个模型都表现出稳定的行为。
We have investigated some bouncing cosmological models in an isotropic and homogeneous space time with the F(R) theory of gravity. Two functional forms of F(R) have been investigated with a bouncing scale factor. The dynamical parameters are derived and analysed along with the cosmographic parameters. The analysis in both the models show the occurrence of bouncing scenario. The violation of strong energy conditions in both models is also shown. In the stability point of view we have analysed the behaviour of F_R = dF/dR with respect to cosmic time and both the models exhibit stable behaviour.