论文标题
关于扩展的$ r^2 $型号的评论
Remarks on an extended $R^2$ model
论文作者
论文摘要
观察宇宙微波背景与$ r^2 $型号一致。在$ r^2 $模型中，存在一个无量纲的常数，必须分配一个非常大的值才能将模型与数据调和。我们表明，此参数的较大值可用于提出扩展模型。已经获得了扩展模型的标量光谱指数和张量表与量表。同样，我们获得了曲率扰动的三点相关函数，以估计扩展模型的原始非高斯。已经表明，扩展模型的预测与观测值一致。
Observation of the cosmic microwave background is consistent with the $R^2$ model. In the $R^2$ model, there exists a dimensionless constant which must be assigned a very large value to reconcile the model with the data. We show that the large value for this parameter can be used to propose an extended model. The scalar spectral index and the tensor-to-scalar ratio of the extended model have been obtained. Also, we obtain the three-point correlation function of the curvature perturbation to estimate the primordial non-Gaussianities of the extended model. It has been shown that the predictions of the extended model are in agreement with the observations.
