论文标题
Palatini $ f（r）$重力的典型通货膨胀
Quintessential inflation in Palatini $f(R)$ gravity
论文作者
论文摘要
我们详细研究了一个典型通货膨胀模型的家族，在$ r+r^2 $ palatini修饰的重力下。我们发现，成功的通货膨胀和精髓是具有充气标量电势获得的，在通货膨胀率上大约是二次的，而挑选的四分之一。我们表明，与度量案例相反，由于Palatini修饰的重力而引起的Kination期间的校正是亚辅助性，而设置并未挑战对太阳系观测值和显微镜实验的重力的约束。我们获得有关原始张量的具体预测，将在不久的将来进行探测。
We investigate in detail a family of quintessential inflation models in the context of $R+R^2$ Palatini modified gravity. We find that successful inflation and quintessence are obtained with an inflaton scalar potential that is approximately quadratic in inflation and inverse quartic in quintessence. We show that corrections for the kination period due to Palatini modified gravity are subdominant, while the setup does not challenge constraints on modified gravity from solar system observations and microscopic experiments, in contrast to the metric case. We obtain concrete predictions regarding primordial tensors, to be probed in the near future.
