Cosmological Perturbations in Loop Quantum Cosmology

by Rita Neves (Departamento de Fisica Teorica and IPARCOS, Universidad Complutense de Madrid)

Wednesday 10 Nov 2021, 13:30 → 14:30 Europe/Stockholm

Albano 3: 6228 - Mega (22 seats) (Albano Building 3)

Hybrid talk: Mega (6228, Hus 3, Albano) + https://stockholmuniversity.zoom.us/j/530682073

The introduction of cosmological perturbations in cosmological models within Loop Quantum Cosmology (LQC) is a natural and necessary step when working towards a falsifiable picture of the theory. In this talk I review the main results of LQC in the context of the flat FLRW model, and the issues behind introducing cosmological perturbations. I focus on one important issue, namely the choice of vacuum of the perturbations, and propose the so-called States of Low Energy as suitable candidates for vacua, resorting to preliminary comparisons with data.

Neves_2021-Nov-10.mp4