Zoom info: https://stanford.zoom.us/my/sihanyuan?pwd=QnpsUHZWWGJ2ekVYWmZVL3BmM0gzZz09

Near-future facilities observing the high-redshift universe (2<z<5) will have an opportunity to take advantage of multi-tracer cosmology by observing multiple tracers of the matter density field: Lyman alpha emitters (LAE), Lyman break galaxies (LBG), and CMB lensing. Using Fisher forecasts, I will show the benefits of multi-tracer for these facilities, highlighting the degeneracy breaking that sources the constraint improvements along the way. The forecast includes a preliminary approach towards modelling the impact of radiative transfer (RT) on constraints involving LAEs by introducing a simplified model at linear theory level. I will discuss how multi-tracers will be able to limit RT effects at the level of this model.