Rank-1 Compression of Linear Growth Observables and its Dynamical Origin in Interacting Dark Energy

Zenodo (CERN European Organization for Nuclear Research) 2026 Preprint Open access

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Authors: masaki okada
DOI: 10.5281/zenodo.18741330
Cited by: 0

Abstract

We investigate the dimensional structure of linear growth observables R(z) across ΛCDM, CPL dark-energy models, and an interacting dark-energy (IDE) framework. A singular value decomposition (SVD) of the observable space shows strong rank-1 compression in all cases, with IDE exhibiting enhanced dynamical alignment. We provide full reproducible data and analysis scripts.

Fields of Study & Subjects

Cosmology and Gravitation Theories Galaxies: Formation Evolution Phenomena Dark Matter and Cosmic Phenomena

Publication details

Journal / source
Zenodo (CERN European Organization for Nuclear Research)
Publication date
23 February 2026
Language
EN
Document type
Preprint