Probing dark energy using convergence power spectrum and bi-spectrum

Abstract

Weak lensing convergence statistics is a powerful tool to probe dark energy. Dark energy plays an important role to the structure formation and the effects can be detected through the convergence power spectrum, bi-spectrum etc. One of the most promising and simplest dark energy model is the $Λ$CDM. However, it is worth investigating different dark energy models with evolving equation of state of the dark energy. In this work, detectability of different dark energy models from $Λ$CDM model has been explored through convergence power spectrum and bi-spectrum.