Speaker
Dr
Michal Artymowski
(Jagiellonian University)
Description
In my talk I will present an idea of a scalar theory with a general potential $V(f(\varphi))$, where $f(\varphi) = \xi\sum_{k=1}^n \lambda_k \varphi^k$. I will show how to obtain generally flat inflationary potentials from such a model and prove that the Starobinsky inflation is one of the examples of $V(f)$ with a stationary point of an infinite order. I will generalise this model into a scalar-tensor theory, which leads to multi-phase inflation, with two inflationary plateaus. I will also show the equivalence of this picture to $\alpha$-attractors.
Author
Dr
Michal Artymowski
(Jagiellonian University)