# Renormalization of the primordial inflationary power spectra

- Institution: CERN
- Department: TH institutes
- Speaker: Silvia Pla Garcia
- Year: 2024
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3020136)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

In this talk, I will explore the effects of renormalization on the amplitude of the inflationary spectra at scales measurable in the cosmic microwave background.

Via a gauge-invariant analysis, I will explain why the standard prediction for the spectra on superhorizon scales is a late-time attractor while they are UV finite at all times. This result is independent of the equation of state after inflation, showing that the standard prediction is fully robust..

0:00:00 Slide 1

0:02:43 Slide 2

0:04:13 Slide 3

0:05:59 Slide 4

0:08:23 Slide 5

0:09:32 Slide 6

0:10:49 Slide 7

0:14:44 Slide 8

0:16:10 Slide 9

0:18:27 Slide 10

## Lectures

1. [Renormalization of the primordial inflationary power spectra](https://invisiblenetwork.ai/learn/cern/3020136/b81ba7ffcb5f), 21 min (CERN's player)