Detailed analysis of the curvature bounce: background dynamics and imprints in the CMB
Cyril Renevey,
Aurélien Barrau,
Killian Martineau
Abstract:If the spatial sections of the Universe are positively curved, extrapolating the inflationary stage backward in time inevitably leads to a classical bounce. This simple scenario, non-singular and free of exotic physics, deserves to be investigated in details. The background dynamics exhibits interesting features and is shown to be mostly insensitive to initial conditions as long as observational consequences are considered. The primordial scalar power spectrum is explicitly computed, for different inflaton pot… Show more
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