Remarks on the renormalization of primordial cosmological perturbations
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. © 2011 American Physical Society.
Publication Source (Journal or Book title)
Physical Review D - Particles, Fields, Gravitation and Cosmology
Agullo, I., Navarro-Salas, J., Olmo, G., & Parker, L. (2011). Remarks on the renormalization of primordial cosmological perturbations. Physical Review D - Particles, Fields, Gravitation and Cosmology, 84 (10) https://doi.org/10.1103/PhysRevD.84.107304