Observational hints on the Big Bounce

Understand

In this paper we study possible observational consequences of the bouncing cosmology.

• We consider a model where a phase of inflation is preceded by a cosmic bounce.
• While we consider in this paper only that the bounce is due to loop quantum gravity, most of the results presented here can be applied for different bouncing cosmologies.
• We concentrate on the scenario where the scalar field, as the result of contraction of the universe, is driven from the bottom of the potential well.