Moderator: Simone Ferraro

Presentation materials (upload). 

9:15am-9:25am - Francis-Yan Cyr-Racine - Probing the collective effect of the Universe's small-scale structure with gravitational lensing

9:30am-9:40am - Alex Lague‚ - Non-Linear Fuzzy Dark Matter Modelling with Extended Lagrangian Perturbation Theory

9:45am-9:55am - Emmanuel Schaan - Reducing foregrounds in lensing with shear-only reconstruction and lensing bias from lensed foregrounds

10:00am-10:30am - Lensing and dark matter discussion panel: Francis-Yan Cyr-Racine, Alex Lague‚, Emmanuel Schaan, Neelima Sehgal

Guiding discussion questions:

• Does astrophysics impact our ability to extract cosmology from small scale lensing regime?

• What more numerical work needs to be done to distinguish between the effect of baryonic physics and alternatives to cold dark matter on the small-scale matter power spectrum?

• To what degree do we need to worry about higher order lensing effects in the CMB in HD regime?

• What typical assumptions about lensing break down on the scales being discussed? (Gaussian, curl-free, weak, etc.)

• Can this be done with optical lensing?