Two Claude physics results published as preprints, including weak-coupling Hawking-Page transition

claudeai · x · 2026-11-10

Anthropic announces both theoretical physics results from Claude Fable 5.2 are now preprints. The first, "The Hawking-Page transition at weak coupling" on Hexagon (marked primarily AI-generated), computes the quartic coefficient b = -1.48×10⁻³ λ² of the Polyakov loop effective action in N=4 super Yang-Mills, proving the transition is first-order at weak coupling and resolving a 2003 question — with nearly every number obtained two independent ways. The second establishes the exact limit of "modular bootstrapping," a 15-year-old technique used to rule out candidate quantum gravity theories. Provenance: a Claude research model obtained the results from a physicist's prompt, who checked them against known special cases.

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