论文标题
带有一般相对论水动力学的弹跳宇宙学模型
Bouncing cosmological model with general relativistic hydrodynamics in extended gravity
论文作者
论文摘要
在本文中，在存在一般相对论的流体动力学（GRH）的情况下，我们在延伸的重力理论中提出了弹跳宇宙学模型。已经选择了尺度因子，以使五重弹性弹跳方案进行适当的归一化。因此，反弹发生在$ t = 0 $，相应的哈勃参数在弹跳时期消失。已经分析了状态参数方程（EOS）参数和模型的能量条件。违反强能量条件的行为进一步支持了扩展重力的行为。随着弹跳宇宙学的不稳定性，该模型也显示出相似的行为。
In this paper, in an extended theory of gravity, we have presented bouncing cosmological model at the backdrop of an isotropic, homogeneous space-time, in presence of general relativistic hydrodynamics (GRH). The scale factor has been chosen in such a manner that with appropriate normalization, the quintom bouncing scenario can be assessed. Accordingly, the bounce occurs at $t=0$ and the corresponding Hubble parameter vanishes at the bounce epoch. The equation of state (EoS) parameter and the energy conditions of the model have been analysed. The violation of strong energy condition further supports the behaviour of extended gravity. As the bouncing cosmology suffers with instability, this model also shows the similar behaviour.
