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 $\Lambda$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 $\Lambda$CDM model has been explored through convergence power spectrum and bi-spectrum.

Accepted for publication in JCAP. Matter power spectrum normalization has been changed

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• Physical vs phantom dark energy after DESI: thawing quintessence in a curved background
• Weak lensing probe of cubic Galileon model
• Analytical Gaussian Process Cosmography: Unveiling Insights into Matter-Energy Density Parameter at Present
• Constraints on the speed of sound in the k-essence model of dark energy
• A comprehensive data-driven odyssey to explore the equation of state of dark energy
• Cosmic curvature on large-scale structures with homogeneous dark energy