Range convergence and sharp one-arm asymptotics for the critical percolation cluster in high dimensions

2026/07/27 by M. Cabezas, D. Croydon, A. Fribergh +1
Mathematics · #math.PR

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Abstract

For critical Bernoulli bond percolation on \Z^d in the high-dimensional regime, we prove that the rescaled empirical measure of the cluster of the origin converges, in a suitable σ-finite sense, to the total occupation measure of super-Brownian motion. Combined with a uniform lower mass bound for the critical cluster with respect to the extrinsic (Euclidean) metric, which we also prove and which is of independent interest, the measure convergence further yields the convergence of the rescaled cluster as a compact set, in the Hausdorff metric. As a consequence, we are able to obtain the sharp one-arm asymptotics r² \bP(0↔ ∂ B_r)→ θ₁∈(0,∞), hence refining a result of Kozma and Nachmias.

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