http://arxiv.org/abs/2105.02772
We consider Einstein-Gauss-Bonnet (EGB) inflationary models using the effective potential approach. We present evolution equations in the slow-roll regime using the effective potential and the tensor-to-scalar ratio. The choice of the effective potential is related to an expression of the spectral index in terms of e-folding number $N_e$. The satisfaction of the slow-roll regime is mostly related to the form of the tensor-to-scalar ratio $r$. The case of $r\sim1/N^2_e$ leads to a generalization of $\alpha$-attractors inflationary parameters to Einstein-Gauss-Bonnet gravity with exponential effective potential.
Also the cosmological attractors include models with $r\sim1/N_e$. We are checking the satisfaction of the slow-roll regime during inflation for models with $r\sim1/N_e$.
E. Pozdeeva
Fri, 7 May 21
13/61
Comments: N/A
You must be logged in to post a comment.