Dice Question Streamline Icon: https://streamlinehq.com

Cutoff for the Ising model throughout the rapidly-mixing regime on bounded-degree graphs

Establish total-variation cutoff for the Gibbs sampler (single-site update chain) of the Ising model on bounded-degree graphs throughout the entire rapidly-mixing regime (e.g., the tree uniqueness regime).

Information Square Streamline Icon: https://streamlinehq.com

Background

Information Percolation proves cutoff for the Ising model at high temperature (strong spatial mixing) on lattices, but it requires strong decoupling and does not apply across the entire rapidly-mixing regime. Recent progress via spectral independence and entropy factorization shows rapid mixing throughout the tree uniqueness regime; the conjecture is that cutoff should also hold there.

References

A natural but far-reaching conjecture, suggested by this breakthrough, is that cutoff should occur under the very same structural assumptions.

Modern aspects of Markov chains: entropy, curvature and the cutoff phenomenon (2508.21055 - Salez, 28 Aug 2025) in Section 2.4, Monte Carlo Markov Chains – Ising model