Signatures of Quantum Gravity in a Born-Oppenheimer Context

Understand

We solve a general equation describing the lowest order corrections arising from quantum gravitational effects to the spectrum of cosmological fluctuations.

• The spectra of scalar and tensor perturbations are calculated to first order in the slow roll approximation and the results are compared with the most recent observations.
• The slow roll approximation gives qualitatively new quantum gravitational effects with respect to the pure de Sitter case.