论文标题
温暖变形$ r^{2} $通货膨胀
Warm deformed $R^{2}$ inflation
论文作者
论文摘要
在这项工作中，我们基于$ r^{2} $重力的变形研究温暖的通货膨胀方案。我们开始考虑$ r^{p} $，并假定$ p = 2（1+δ）$带有$δ\ ll 1 $，这样我们就可以在设置$δ= 0 $时简单地获得温暖的$ r^{2} $通货膨胀。然后，我们在爱因斯坦框架中得出潜力，并考虑$γ= c_ {1} t $的耗散参数，其中$ c_1 $是耦合参数。我们仅关注强大的状态，即充气和辐射流体之间的相互作用已被考虑。我们使用普朗克报道的最新观察数据来计算通货膨胀可观察到的可观察到我们模型的参数。从我们的分析中，我们发现，通过正确选择参数，派生的$ n_s $和$ r $与Planck 2018观测约束非常吻合。特别是，我们限制了模型的潜在规模$ u_ {0} $。
In this work, we study warm inflationary scenario based on a deformation of $R^{2}$ gravity. We start considering $R^{p}$ and assume $p=2(1+δ)$ with $δ\ll 1$ so that we simply obtain warm $R^{2}$ inflation when setting $δ=0$. We then derive the potential in the Einstein frame and consider a dissipation parameter of the form $Γ= C_{1}T$ with $C_1$ being a coupling parameter. We focus only on the strong regime of which the interaction between inflaton and radiation fluid has been taken into account. We compute inflationary observables and constrain the parameters of our model using latest observational data reported by Planck. From our analysis, we discover that with proper choices of parameters the derived $n_s$ and $r$ are in good agreement with the Planck 2018 observational constraints. Particularly, we constrain the potential scale $U_{0}$ of the models.
