On the physical spectra of primordial perturbations from inflation

Add to your list(s) Download to your calendar using vCal

• Silvia Pla Garcia (King's College London)
• Monday 26 February 2024, 13:00-14:00
• CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].

If you have a question about this talk, please contact Thomas Colas.

It has been suggested that the effects of renormalization significantly reduce the amplitude of the inflationary spectra at scales measurable in the cosmic microwave background. Via a gauge-invariant analysis, we compute the renormalized scalar and tensor power spectra and follow their evolution in an inflating universe that undergoes a transition to an FRW phase with a growing horizon. For perturbations originating from Minkowski vacuum fluctuations, we show that the standard prediction for the spectrum on superhorizon scales is a late-time attractor, while it is UV finite at all times. Our result is independent of the equation of state after inflation, showing that the standard prediction is fully robust.

This talk is part of the Cosmology Lunch series.

This talk is included in these lists:

• All CMS events
• CMS Events
• CMS, Pav. B, CTC Common Room (B1.19) [Potter Room]
• Cosmology Lunch
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• DAMTP info aggregator
• Interested Talks
• Kavli Institute for Cosmology Talk Lists
• Priscilla
• bld31

Note that ex-directory lists are not shown.