Weak lensing forecasts for dark energy, neutrinos and initial conditions

摘要: Weak gravitational lensing provides a sensitive probe of cosmology by measuring the mass distribution and geometry low redshift universe. We show how an all-sky weak tomographic survey can jointly constrain different sets cosmological parameters describing dark energy, massive neutrinos (hot matter), primordial power spectrum. In order to put all sectors on equal footing, we introduce new parameter $\beta$, second running spectral index. Using Fisher matrix formalism with without CMB priors, examine constraints vary as set is enlarged. find that priors robust energy simultaneously provide strong three sectors. sector largely insensitive inclusion other Implications for planning future surveys are discussed.