Quantum Gravity inspired nonlocal gravity model

Understand

We consider a nonlocal gravity model motivated by nonperturbative Quantum Gravity studies.

• This model, if correct, suggests the existence of strong IR relevant effects which can lead to an interesting late time cosmology.
• We implement the IR modification directly in the effective action.
• We show that, upon some assumptions on initial conditions, this model describes an observationally viable background cosmology being also consistent with local gravity tests.