Perturbative evaluation of the scalar two-point function in the cosmic microwave background power spectrum
Perturbative evaluation of the scalar two-point function in the cosmic microwave background power spectrum
Recent work in the literature has found a suppression or, instead, an enhancement of the Cosmic Microwave Background power spectrum in quantum gravity, although the effect is too small to be observed, in both cases. The present paper studies in detail the equations recently proposed for a Born-Oppenheimer-type analysis of …