May 6 – 10, 2024
US/Eastern timezone

Bouncing cosmology from LQC with ekpyrotic and matter fields

May 7, 2024, 4:45 PM
15m
FAU FTL Room 312

FAU FTL Room 312

Cosmology, Black Holes, and other applications/phenomenology Cosmology

Speaker

Emmanuel Frion (University of Western Ontario, Physics and Astronomy)

Description

I will present an ongoing work about the evolution of a two-field bouncing scenario in Loop Quantum Cosmology. The model features a quasi-dust field with a slightly negative equation of state, dominating in the far past of the contraction phase, which is known as a possible candidate to explain the red tilt observed in the CMB power spectrum. To avoid instabilities, an ekpyrotic field dominates around the bounce for a sufficiently long time. I will present the dynamics of this system and the results obtained so far.

Author

Emmanuel Frion (University of Western Ontario, Physics and Astronomy)

Co-authors

Prof. Francesca Vidotto (The University of Western Ontario) Mr Mateo Pascual Gomez-Cuetara

Presentation materials