Talk detail

Participant	Giusti, Andrea
Institution	University of Bologna - Via Irnerio, 46 - Bologna - Emilia Romagna - Italy

Session	AT1	Accepted		Order	Time
Talk	Oral abstract	Title	Corpuscular slow-roll inflation
Coauthors
Abstract	We show that a corpuscular description of gravity can lead to an inflationary scenario similar to Starobinsky's model without requiring the introduction of the inflaton field. All relevant properties are determined by the number of gravitons in the cosmological condensate or, equivalently, by their Compton length. In particular, the relation between the Hubble parameter H and its time derivative H required by cosmic microwave background observations at the end of inflation, as well as the (minimum) initial value of the slow-roll parameter, are naturally obtained from the Compton size of the condensate.
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