Roland de Putter

Constraining fundamental physics with weak lensing and galaxy clustering

I will discuss examples of the importance of complementarity between cosmological data sets. I will first discuss bounds from current data on neutrino mass and the primordial power spectrum, and will show that combining cosmological probes is crucial for obtaining robust constraints. I will then discuss the complementarity between near-future weak lensing and galaxy clustering surveys such as SuMIRe (Subaru Measurements of Images and Redshifts), showing that the combination of these probes promises much tighter dark energy and modified gravity constraints than those from either probe alone. Finally, I will discuss (optimal) survey strategies for constraining primordial non-Gaussianity with galaxy clustering data.