English

Poisson percolation on the square lattice

Probability 2017-12-12 v1

Abstract

On the square lattice raindrops fall on an edge with midpoint xx at rate xα\|x\|_\infty^{-\alpha}. The edge becomes open when the first drop falls on it. Let ρ(x,t)\rho(x,t) be the probability that the edge with midpoint x=(x1,x2)x=(x_1,x_2) is open at time tt and let n(p,t)n(p,t) be the distance at which edges are open with probability pp at time tt. We show that with probability tending to 1 as tt \to \infty: (i) the cluster containing the origin C0(t)\mathbb C_0(t) is contained in the square of radius n(pcϵ,t)n(p_c-\epsilon,t), and (ii) the cluster fills the square of radius n(pc+ϵ,t)n(p_c+\epsilon,t) with the density of points near xx being close to θ(ρ(x,t))\theta(\rho(x,t)) where θ(p)\theta(p) is the percolation probability when bonds are open with probability pp on Z2\mathbb Z^2. Results of Nolin suggest that if N=n(pc,t)N=n(p_c,t) then the boundary fluctuations of C0(t)\mathbb C_0(t) are of size N4/7N^{4/7}.

Keywords

Cite

@article{arxiv.1712.03403,
  title  = {Poisson percolation on the square lattice},
  author = {Irina Cristali and Matthew Junge and Rick Durrett},
  journal= {arXiv preprint arXiv:1712.03403},
  year   = {2017}
}

Comments

9 pages, 3 figures

R2 v1 2026-06-22T23:13:11.223Z