I will present the Idea of an inflaton without direct couplings to any additional fields. I will show a possible mechanisms of reheating together with implications of dark inflation on predictions of inflation, dark energy, dark matter, thermal history of the Universe, electro-weak phase transition and gravitational waves production.
In the paper we show that the general relativity action (and Lagrangian) in recent Einstein-Palatini formulation is equivalent to the action (and Langrangian) of a gauge field.
We begin with a bit of information of the Einstein-Palatini (EP) action, then we present how Einstein fields equations can be derived from it. In the next section, we consider Einstein-Palatini action integral for...
TBA
In this talk, a new class of modified teleparallel theory is presented. The action of this theory
is constructed by a function of the irreducible parts of torsion f(Tax, Tten, Tvec), where Tax, Tten
and Tvec are the axial, tensor and vector components of torsion. This is the most general (well-motivated) second order teleparallel theory of gravity that can be constructed from the...
