Computing Nonlinear Power Spectra Across Dynamical Dark Energy Model Space with Neural ODEs

I show how to compute the nonlinear power spectrum across the entire $w(z)$ dynamical dark energy model space. Using synthetic ΛCDM data, I train a neural ordinary differential equation (ODE) to infer the evolution of the nonlinear matter power spectrum as a function of the background expansion and...

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Bibliographic Details
Main Author: Peter L. Taylor
Format: Article
Language:English
Published: Maynooth Academic Publishing 2025-08-01
Series:The Open Journal of Astrophysics
Online Access:https://doi.org/10.33232/001c.143521
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