论文标题
在Palatini修饰的重力中建模典型的通货膨胀
Modelling Quintessential Inflation in Palatini Modified Gravity
论文作者
论文摘要
我们研究了一种典型的通货膨胀模型，该模型在Palatini形式主义中以$ r^2 $修饰的重力和非最小耦合标量场进行。我们的非最小充气场的特征是简单的指数潜力。我们发现，可以在模型参数上进行微调，可以实现成功的典型通货膨胀。关于黑暗能量特征的预测将通过不久的将来的观测来测试，而与现有观测值的对比则提供了有关修饰的重力背景的见解，例如非最小耦合及其运行的价值。
We study a model of quintessential inflation constructed in $R^2$ modified gravity with a non-minimally coupled scalar field, in the Palatini formalism. Our non-minimal inflaton field is characterised by a simple exponential potential. We find that successful quintessential inflation can be achieved with no fine-tuning on the model parameters. Predictions on the characteristics of dark energy will be tested by observations in the near future, while contrast with existing observations provides insights on the modified gravity background, such as the value of the non-minimal coupling and its running.
