论文标题
在爱因斯坦 - 加斯 - 尼特重力框架中具有四分之一潜力的通货膨胀
Inflation with a quartic potential in the framework of Einstein-Gauss-Bonnet gravity
论文作者
论文摘要
我们研究了爱因斯坦 - 加斯 - 邦纳特重力框架中的通货膨胀动力学。在所考虑的模型中，充气场非最低限制与高斯 - 骨网曲率不变性相结合，因此后者似乎在动态上很重要。我们考虑了通气场的四分之一潜力，尤其是与希格斯通货膨胀相关的渐近线，以及早期工作中未考虑的更广泛的耦合函数。请记住，观察界的参数 - 标量扰动的幅度$ a_s $，频谱索引$ n_s $和张量表与量表比$ r $ $ r $，我们证明该模型具有奇特的潜力，并且拟议的耦合功能与观察协议是一致的。
We investigate inflationary dynamics in the framework of the Einstein-Gauss-Bonnet gravity. In the model under consideration, the inflaton field is non-minimally coupled to the Gauss-Bonnet curvature invariant, so that the latter appears to be dynamically important. We consider a quartic potential for the inflaton field, in particular the one asymptotically connected to the Higgs inflation, and a wider class of coupling functions not considered in the earlier work. Keeping in mind the observational bounds on the parameters - the amplitude of scalar perturbations $A_s$, spectral index $n_s$ and tensor-to-scalar ratio $r$, we demonstrate that the model a quartic potential and the proposed coupling function is in agreement with observation.
