Seminario A. Dolgov

Dettagli dell'evento

Quando

23/05/2018
dalle 14:30 alle 15:30

Dove

Stanza 412, Blocco C

Persona di riferimento

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Il giorno 23 maggio alle ore 14,30 presso l'aula 412, Sasha Dolgov (Università di Ferrara) terra' un seminario dal titolo

Cosmological evolution in R^2 modified gravity

Abstract

Evolution of the universe in R+R^2 theory is considered from inflation induced by the R^2 term to the moment of restoration of the standard FRW cosmology. Exact analytic and numericail solutions in the post-inflationary period are found. Effects of particle production by the oscillating curvature is taken into account. The impact of the deviation from the standard expansion regime on the freezing of species and on PBH production is discussed.