论文标题
palatini- $ r^2 $型号的恒定滚动
Constant-roll in the Palatini-$R^2$ models
论文作者
论文摘要
我们考虑了标量场的模型，该模型耦合到palatini配方框架中的二次$ r \！+\！r^2 $重力。假设恒定滚动条件成立，则分析了由此产生的爱因斯坦框架概括的$ k $通知有效理论。我们专注于四分之一的自我交互潜力，这是一种特殊吸引人的higgs通货膨胀的案例，考虑到加速器与重力的最小和非最低偶联的案例。对于大型域域中的适当范围的模型参数，与当前观察值一致，可观察到的通货膨胀可观测值的值。
We consider models of a scalar field coupled to quadratic $R\!+\!R^2$ gravity in the framework of the Palatini formulation. The resulting Einstein-frame generalized $k$-inflation effective theory is analyzed assuming that the constant-roll condition holds. We focus on a quartic self-interaction potential, a case of particular appeal modelling Higgs inflation, considering the cases of minimal and non-minimal coupling of the inflaton to gravity. For an appropriate range of the model parameters in the large field domain the obtained values for the inflationary observables are found in agreement with current observations.
