On Chemical Distance and Local Uniqueness of a Sufficiently Supercritical Finitary Random Interlacement

Abstract: In this paper, we study geometric properties of the unique infinite cluster $\Gamma$ in a sufficiently supercritical Finitary Random Interlacements $\mathcal{FI}<sup>{u,T}$ in $\mathbb{Z}^d, \ d\ge 3$. We prove that the chemical distance in $\Gamma$ is, with stretched exponentially high probability, of the same order as the Euclidean distance in $\mathbb{Z}<sup>d$. This also implies a shape theorem parallel to those for Bernoulli percolation and random interlacements. We also prove local uniqueness of $\mathcal{FI}<sup>{u,T}$, which says any two large clusters in $\mathcal{FI}<sup>{u,T}$ "close to each other" will with stretched exponentially high probability be connected to each other within the same order of the distance between them.