Microscopic jamming in the negative spherical perceptron

OpenAI

For the spherical perceptron at margin −1 with quadratic penalty, after successive limits in system size, inverse temperature and density approaching the feasibility threshold from above, the gap and force laws have exponents γ=1/(2+θ), with 0.4126930<γ<0.4126934 and 0.4231063<θ<0.4231088. The same limits are claimed for a sufficiently small fixed Gaussian scale mixture.

Sources for this record

What was already known

Franz and Parisi predicted the critical gap and force exponents. Earlier scaling arguments did not derive the selected microscopic ordered-equilibrium limit at margin −1.

AI involvement AI-led

OpenAI identifies the manuscript as internal-model research output; the independence of this individual run is undocumented.

The model-produced manuscript gives the central limiting-law argument and exponent enclosure; session-level autonomy is undocumented.

Importance Notable

Claims a microscopic limiting law and narrow rigorous exponent bounds for this jamming model.

Limitations

A reported exact finite certificate checks numerical enclosures and analytic input inequalities, not the full microscopic-limit and mixture-universality argument. The separate certificate file and saved run were not available in the reviewed release.

Technical verification Partial

The manuscript reports a completed integer-residual and interval-arithmetic certificate run for the numerical exponent enclosure and analytic input inequalities. That finite machine check does not by itself check the long microscopic-limit and mixture-universality argument, for which no completed human or formal review is documented.

Independent checking

Finite inequalities and root enclosure used to bound the selected gap and force exponents. Integer polynomial residual checks and interval arithmetic; the manuscript reports a complete assertions-enabled run on October 4, 2026

Checker
The manuscript's Python/NumPy certificate driver, as reported by OpenAI
Scope
Finite inequalities and root enclosure used to bound the selected gap and force exponents
Basis
Reported by the linked checker
Evidence source

Human understanding Few

No named human explains the microscopic-to-critical selection mechanism or the certificate's role in the full proof. Few is the evidence default.

Correction and publication history