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We estimate uncertainties of cosmological parameters for phenomenologicalinteracting dark energy models using weak lensing convergence power spectrumand bispectrum. We focus on the bispectrum tomography and examine how well theweak lensing bispectrum with tomography can constrain the interactions betweendark sectors, as well as other cosmological parameters. Employing the Fishermatrix analysis, we forecast parameter uncertainties derived from weak lensingbispectra with a two-bin tomography and place upper bounds on strength of theinteractions between the dark sectors. The cosmic shear will be measured fromupcoming weak lensing surveys with high sensitivity, thus it enables us to usethe higher order correlation functions of weak lensing to constrain theinteraction between dark sectors and will potentially provide more stringentresults with other observations combined.

Constraints on the dark matter and dark energy interactions from weak lensing bispectrum tomography