23–26 Sept 2014
DESY Hamburg
Europe/Berlin timezone

Just enough inflation: power spectrum modifications at large scales

25 Sept 2014, 14:20
20m
Seminar room 4B (DESY Hamburg)

Seminar room 4B

DESY Hamburg

Notkestrasse 85, 22607 Hamburg

Speaker

Francisco Pedro (DESY)

Description

We show that models of `just enough' inflation, where the slow-roll evolution lasted only 50−60 e-foldings, feature modifications of the CMB power spectrum at large angular scales. We perform a systematic and model-independent analysis of any possible non-slow-roll background evolution prior to the final stage of slow-roll inflation, We find a high degree of degeneracy since all possible backgrounds give rise to just two distinct classes of primordial spectra.

Primary author

Co-authors

Alexander Westphal (DESY) Bashkar Dutta (Texas A&M) Michele Cicoli (Bologna Univ.) Sean Downes (National Taiwan University)

Presentation materials