Seminarium "Teoria cząstek elementarnych i kosmologia"

I will present a brief introduction to the swampland conjecture and I will show how it influences the general conditions on scalar theories in the early Universe. In principle, I will focus on the f(R) and Brans-Dicke theories of gravity, which may be expressed as scalar theories in the Einstein frame. I will show how the swampland conjecture limits the possibilities of inflation in f(R) I will also show how a scalaron field may provide an easy way out of swampland.