Abstract
We briefly review the need to perform renormalization of inflationary perturbations to properly work out the physical power spectra. We also summarize the basis of (momentum-space) renormalization in curved spacetime and address several misconceptions found in recent literature on this subject.
- Received 3 August 2011
DOI:https://doi.org/10.1103/PhysRevD.84.107304
© 2011 American Physical Society
