论文标题
Brane引起的重力宇宙学的恒定滚动通胀
Constant-roll Inflation in Brane Induced Gravity Cosmology
论文作者
论文摘要
在本文中，我们研究了由典型标量场引起的DGP Brane-World宇宙学的恒定通货膨胀模型。我们确定了与缩放器场运动方程相连的弗里德曼方程的分析解决方案。还研究了原始标量和张量扰动的演变。为了检查模型的可行性，我们使用数值方法并绘制一些数字。我们对标量光谱指数和张量比比率的结果表现出与给定模型参数值的观察值良好的一致性。
In this article we study a constant-roll inflationary model in the context of the DGP brane-world cosmology caused by a quintessence scalar field. We determine an analytical solution for the Friedman equation coupled to the equation of motion of the scaler field. The evolution of the primordial scalar and tensor perturbations is also studied. To check the viability of the model we use numerical approaches and plot some figures. Our results for the scalar spectral index and the tensor to scaler ratio show good consistency with observations for given values of model parameters.
