Finite-energy infinite clusters without anchored expansion
Probability
2021-01-26 v2 Mathematical Physics
math.MP
Abstract
Hermon and Hutchcroft have recently proved the long-standing conjecture that in Bernoulli(p) bond percolation on any nonamenable transitive graph G, at any p > p_c(G), the probability that the cluster of the origin is finite but has a large volume n decays exponentially in n. A corollary is that all infinite clusters have anchored expansion almost surely. They have asked if these results could hold more generally, for any finite energy ergodic invariant percolation. We give a counterexample, an invariant percolation on the 4-regular tree.
Cite
@article{arxiv.2011.01377,
title = {Finite-energy infinite clusters without anchored expansion},
author = {Gábor Pete and Ádám Timár},
journal= {arXiv preprint arXiv:2011.01377},
year = {2021}
}
Comments
9 pages, 1 figure. Small changes throughout. To appear in Bernoulli