Entering a new, data-driven era for precision cosmology: opportunities and challenges for machine learning.
Laurence Perreault-Levasseur
Stanford University

Despite the remarkable success of the standard model of cosmology, the inflationary lambda CDM model, at predicting the observed structure of the universe over many scales, very little is known about the fundamental nature of its principal constituents: the inflationary field(s), dark matter, and dark energy. In this talk, I will give a brief overview of the successes of the inflationary lambda CDM model and discuss how, in the coming years, new surveys and telescopes will provide an opportunity to probe these unknown components. These surveys will produce unprecedented volumes of data, the analysis of which can shed light on the equation of state of dark energy, the particle nature of dark matter, and the nature of the inflaton field. The analysis of this data using traditional methods, however, is entirely impractical. I will share my recent works in developing machine learning tools for cosmological data analysis and discuss how they can allow us to overcome some of the most important computational challenges for the data analysis of the next generation of sky surveys.

Date:	Jeudi, 14 mars 2019
Time:	11:30
Where:	Université de Montréal
	Pavillon Roger-Gaudry, Local D-460
Contact:	Björn Benneke