bibkey: “plascencia2026diffuse” authors: “Alexis D. Plascencia” year: 2026 title: “A Dominant Diffuse Phase in the Sparse Autoencoder Phase Diagram” doi: null claim: “Across hierarchy, penalty and width sweeps, trained sparse autoencoders mostly converge to a diffuse phase with near-perfect reconstruction, atoms far from the true features and denser codes.” strata_touched: [] license: “citation-only” triage: “anchor” url: “https://arxiv.org/abs/2609.10299”

A Dominant Diffuse Phase in the Sparse Autoencoder Phase Diagram

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arXiv:2609.10299. Cited as an empirical phase diagram suggesting that trained SAEs need not sit at either of the two canonical dictionaries compared in the fiber-law volume.

Declared identifiers: https://arxiv.org/abs/2609.10299.