University of Waterloo
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
Phone: (519) 888-4567 ext 32215
Fax: (519) 746-8115
The values of neutrinos’ masses and the force driving the accelerated expansion of the Universe are some of the unknown in physics. In this talk I will discuss fairly new probes—cosmic voids and marked power spectra—and a novel method—emulator with simulations on the fly—to extract cosmological information from future surveys, which will allow to understand the nature of neutrinos and dark energy. I will discuss why cosmic voids are special laboratories to study neutrinos and motivate the use of marked power spectra as cosmological probes. I will then present a fisher matrix analysis performed with the Quijote simulations to estimate the constraining power of these probes. Finally, I will talk about the design of a new emulator for the galaxy power spectrum, which we have coupled to a novel optimizer. Those represent a novel method to contain the growth rate of structure in future galaxy surveys.
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.