OpenAI reports a canonical massive continuum limit of the two-dimensional O(3) model

For the nearest-neighbor two-dimensional O(3) spin model with no external field or topological term, normalization by susceptibility and second-moment correlation length yields a unique continuum Schwinger hierarchy as the bare inverse coupling tends to infinity through all positive real values; the reconstructed field theory has a positive mass gap and a nonzero connected four-point function.

Sources for this record

What was already known

Perturbative and integrability calculations predicted the continuum theory, while rigorous large-N, hierarchical, or local Gaussian results did not construct this cutoff-removed interacting continuum limit for the nearest-neighbor O(3) lattice model.

AI involvement AI-led

OpenAI credits itself as manuscript author and states that its internal frontier model produced the results in this release. Individual human input is not detailed enough to establish task-only autonomy.

OpenAI is named as author on the manuscript, and its release attributes the results to an internal frontier model. The individual human input is not detailed enough to establish autonomy.

Importance Major

Constructs a canonical non-Gaussian massive continuum field theory from the specified O(3) lattice model.

Limitations

The claim is for this lattice action and periodic thermodynamic state, with no universality assertion across other discretizations. The linked Lean scope checks finite-volume exponential correlation decay for O(n), n≥3, not the continuum limit, gap on the limiting field, or non-Gaussianity.

Technical verification Reported

Reported is the default when evidence for a higher level is insufficient. The OpenAI-authored manuscript reports and argues the result, but the reviewed sources do not document a completed check of the full assessed claim.

Human understanding Few

Few is the default when evidence for a higher level is insufficient. No named person is documented as explaining the central argument for this assessed contribution.

Correction and publication history

2026-10-18 · publication

Primary manuscript, attribution, prior-work, and precise Lean-scope or conditional-input review for non-notifying local inclusion.

Read this published revision