论文标题

Starobinsky通货膨胀模型的新的单参数扩展

New one-parametric extension of the Starobinsky inflationary model

论文作者

Pozdeeva, Ekaterina O., Vernov, Sergey Yu.

论文摘要

我们通过添加$(r+m^2β^2)^{3/2} $ term提出了Starobinsky $ r+r^2 $模型的单参数扩展。参数$ m $是充气质量,它以与Starobinsky模型相同的方式确定,而$β$是一个无尺寸常数。使用爱因斯坦框架和标量场电位,我们获得了所提出的模型的通货膨胀参数。张量比$ r $的价值可能比Starobinsky型号大得多。所考虑的通货膨胀模型与当前的观察数据非常一致。相应的标量场电势是指数函数的多项式。

We propose a one-parametric extension of the Starobinsky $R+R^2$ model by adding the $(R+m^2β^2)^{3/2}$ term. The parameter $m$ is the inflaton mass, which is determined in the same way as in the Starobinsky model, and $β$ is a dimensionless constant. Using the Einstein frame and the scalar field potential, we get the inflationary parameters of the model proposed. The value of the tensor-to-scalar ratio $r$ can be significantly larger than in the Starobinsky model. The considered inflationary model is in a good agreement with the current observational data. The corresponding scalar field potential is a polynomial of the exponential function.

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