A speculative cosmological cascade from a supermassive parent black hole to ΛCDM through Dark Geometry.
Hugo Hertault — Independent researcher, Tahiti — June 2026.
This repository contains the paper, the figure-generating code, and the numerical verification scripts for the Decollapse article, part of the Dark Geometry series.
This article proposes a candidate mechanism — parametric decollapse — for the parent-to-daughter transition of the Dark Geometry cosmological-inheritance doctrine: how a black-hole interior saturated at ℐ = 1 becomes a daughter universe that inflates into a ΛCDM cosmology.
It is written in an explicitly speculative and self-critical register. Rather than present only a polished result, it documents the reasoning, including the candidate mechanisms that are examined and rejected, and classifies every quantitative claim by evidential tier:
- Tier A — algebraic identities (exact)
- Tier B — derivations with stated approximations
- Tier C — conjectures and order-of-magnitude estimates
The central trigger mechanism contains Tier-C elements. They are stated clearly rather than hidden.
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Parent mass fixed by Λ. The parent mass is not a free input: it follows from the cosmological constant via the inheritance law Λ ∝ S_parent^(−p) with the conformal-weight exponent p = (d+1)/d = 4/3, giving a supermassive parent M ≈ 1.7×10⁷ M☉ whose echo lies in the LISA band (~1.9 mHz). The competing readings p = 1 and p = 3/2 are excluded in the paper (Section 2).
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A thermal trigger is impossible. Heating the condensate to T_c requires an energy exceeding the parent's own Mc² by ~10²⁵. Shown explicitly; a deconfinement picture is developed instead.
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Deconfinement picture. The saturated condensate is metastable, frozen by the gravitational red-shift of the horizon. The freezing factor equals the interferometric attenuation of the conformal mode through the 256 layers of the Hertault beam-splitter, √β·(sin θ_H)²⁵⁶ = √(Λ/M_Pl⁴). The trigger is the universal trace coupling, with a naturally selective threshold h_crit ~ α_*·√(sin²θ_H) ≈ 4%, crossed only by close SMBH–SMBH mergers.
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Inflationary predictions from the DG-fixed exponent α = √(2/3): n_s = 0.9654 (Planck 0.9649 ± 0.0042), r = 3.3×10⁻³, Ω_Λ = 2/3, Ω_m = 1/3.
decollapse/
├── paper/
│ └── decollapse.tex # the article (LaTeX source)
├── code/
│ ├── verify_decollapse.py # reproduces every numerical claim
│ └── make_figures.py # generates the four figures
├── figures/ # generated PNGs (also committed)
├── requirements.txt
├── LICENSE
└── README.md
pip install -r requirements.txt
cd code
python3 verify_decollapse.py # prints every claim vs reference value
python3 make_figures.py # regenerates ../figures/*.png
cd ../paper
pdflatex decollapse.tex && pdflatex decollapse.tex && pdflatex decollapse.texverify_decollapse.py is self-contained: the only input is the spatial dimension d = 3,
and every printed value carries its reference (Planck, BICEP/Keck, or the canonical DG
constant). No fitted parameters enter the algebraic structure.
- Derive the surface-layer thickness δ fixing the exact coefficient of h_crit (order of magnitude ~α_* is established).
- Quantify the decollapse rate per comoving volume from the SMBH-merger rate (falsifiable LISA prediction).
- Compute the R² coefficient (hence A_s) by heat-kernel expansion on the fibration — the O(6) factor.
- Derive the freezing depth 256 from first principles rather than from S_cosmo.
Decollapse is offered not as an established result but as an open proposal: a mathematically continuous cascade whose surviving predictions are robust, and whose trigger mechanism is a well-posed open problem. Critical feedback is welcome via Issues.
@misc{hertault_decollapse_2026,
author = {Hertault, Hugo},
title = {Parametric Decollapse of Hertault Condensates: a speculative cosmological
cascade from a supermassive parent black hole to LambdaCDM},
year = {2026},
note = {Dark Geometry series},
url = {https://github.com/hugohertault/decollapse}
}Code released under the MIT License (see LICENSE). The text of the paper is © Hugo
Hertault 2026, released under CC BY 4.0.