Exploring Beyond CDM with the Weak Lensing Power Spectrum and Bispectrum

arXiv:2603.12504 · astro-ph.CO · Submitted 2026-03-12 · Read on arXiv

astro-ph.CO

Submitted: 2026-03-12

Updated: 2026-09-24

Code: https://github.com/cbvaswar/Beyond_LCDM_WL

Terminology

• Bispectrum — 104× in this paper · explained in 3 episodes
• Weak Lensing — 85× in this paper · explained in 2 episodes
• Alignment — 34× in this paper · explained in 1 episode
• Gravitational Lensing — 11× in this paper · explained in 2 episodes
• Matter Power Spectrum — 10× in this paper · explained in 2 episodes
• Clustering — 9× in this paper · explained in 2 episodes
• Degeneracy — 7× in this paper · explained in 3 episodes
• Calibration — 5× in this paper · explained in 7 episodes
• Baryonic Feedback — 4× in this paper · explained in 3 episodes
• Quintessence — 4× in this paper · explained in 2 episodes
• Momentum transfer — 3× in this paper · explained in 2 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Fisher Information — 2× in this paper · explained in 3 episodes
• General Relativity — 2× in this paper
• Homogeneity — 2× in this paper · explained in 2 episodes
• Trace — 2× in this paper · explained in 2 episodes
• alpha — 2× in this paper · explained in 1 episode
• 21-cm signal — 1× in this paper · explained in 1 episode
• Abundance — 1× in this paper · explained in 1 episode
• Adam — 1× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Core — 1× in this paper · explained in 2 episodes
• Equation of State (EoS) — 1× in this paper · explained in 4 episodes
• Fisher matrix formalism — 1× in this paper · explained in 2 episodes
• Higher-order statistics — 1× in this paper · explained in 2 episodes
• N-body simulations — 1× in this paper · explained in 2 episodes
• No-Go Theorem — 1× in this paper · explained in 2 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Observatory Legacy Survey of Space and Time — 1× in this paper
• Unified Framework — 1× in this paper · explained in 5 episodes

Sources

• LSST Science Book, Version 2.0
• Large Synoptic Survey Telescope: Dark Energy Science Collaboration
• Weak gravitational lensing
• The LSST Dark Energy Science Collaboration (DESC) Science Requirements Document
• Bispectrum Modelling in Large Scale Structure - A Three Shape Model
• Statistical techniques in cosmology

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