A thermally and perturbatively stable classical spin model in two dimensions

2026-10-19 · arXiv Quantum Physics

arXiv:2610.22548v1 Announce Type: new

Abstract: We show that the 2D classical spin model constructed in arXiv:2605.10943 hosts many metastable states at non-zero temperature which are stable to arbitrary Hamiltonian perturbations, providing the first such example. Our proof relies on a recursive application of the cluster expansion.

原文链接：https://arxiv.org/abs/2610.22548

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