Abstract
Surveys of weak gravitational lensing of distant galaxies will be one of the key cosmologicalprobes in the future. We study the ability of such surveys to constrain neutrino masses andthe equation of state parameter of dark energy, focusing on how tomographicinformation can improve the sensitivity to these parameters. We also provide a detaileddiscussion of systematic effects pertinent to weak lensing surveys, and the possibledegradation of sensitivity to cosmological parameters due to these effects. For futureprobes such as the Large Synoptic Survey Telescope survey, we find that, whencombined with cosmic microwave background data from the Planck satellite, asensitivity to neutrino masses of can be reached. These results are not affected by variations in the running of the scalarspectral index, the time-dependence of the dark energy equation of state, and/or thenumber of relativistic degrees of freedom.
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