Second-order Fusion Asymptotics for Sine\b{eta} Correlation Functions

arXiv:2608.23742 2026 Sampling 1 ideas extracted · analyzed Aug 29, 2026

What the math gives to ML

The paper gives an explicit local expansion for an unordered point-process density when m points fuse: the leading term is Vandermonde repulsion, and the first finite-scale correction is a universal quadratic penalty in pairwise separations. This is transferable to neural samplers or score models that generate point configurations, where it can provide an analytic short-range prior instead of forcing the network to learn repulsion from limited data. The useful asset is the combination of a singular repulsive score and a computable second-order correction, together with the validity condition m beta > 1. A practical test is to add this local score target to a point-set diffusion model and measure pair-correlation accuracy and collision frequency at fixed model size.

Ideas from this paper

Unverified 2026

Second-order fusion prior for point-set diffusion

Add the paper's local Sine_beta fusion law as an analytic score prior for diffusion models that generate unordered point configurations. The model is trained to match both the usual diffusion score and an explicit short-range repulsion score, including the second-order correction that describes finite-scale fused configurations.

Useful6/10
Difficulty5/10
Novelty6/10
Paper: Second-order Fusion Asymptotics for Sine\b{eta} Correlation Functions arXiv:2608.23742