Sep 24 – 28, 2017
Kazimierz Dolny, Poland
Europe/Warsaw timezone

Inflationary scenario in Starobinski-Palatini FLRW cosmology

Sep 27, 2017, 6:20 PM
Kazimierz Dolny, Poland

Kazimierz Dolny, Poland

Dom Pracy Twórczej SDP ul. Małachowskiego 17 24-120 Kazimierz Dolny
Oral presentation (preferred) Mathematical Physics 3


Andrzej Borowiec (University of Wrocław)


We review some recent results concerning inflationary scenario in the framework of Starobinski-Palatini FLRW cosmology, which can be reduced to the two-dimensional singular (piecewise-smooth) dynamical system of Newtonian type. Therefore, it can be describe in geometric terms of the corresponding potential function. Analytical calculations are given for the case with dust matter and cosmological constant. We investigate the model in both Jordan and Einstein frames. We demonstrate that after transition to the Einstein frame we obtain both decaying Lambda and the form of a scalar field potential. In particular, we discuss slow-roll parameters, graceful exit and confront the model against observational data.

Primary authors

Andrzej Borowiec (University of Wrocław) Marek Szydłowski (Jagiellonian University)

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