The chemical distance in random interlacements in the low-intensity regime

Random interlacements is a Poissonian soup of doubly-infinite random walk trajectories on Z^{d, with a parameter u > 0 controlling the intensity of the Poisson point process. In a natural way, the model defines a percolation on the edges of Z}d with long-range correlations. We consider the time constant associated to the chemical distance in random interlacements at low intensity u > 0. It is conjectured that the time constant times u^{1/2} converges to the Euclidean norm, as u ↓ 0. In dimensions d ≥ 5, we prove a sharp upper bound and an almost sharp lower bound for the time constant as the intensity decays to zero. Joint work with Eviatar Procaccia and Ron Rosenthal.

• Speaker: Saraí Hernández-Torres (Technion)
• Tuesday 10 May 2022, 14:00–15:00
• Venue: MR12.
• Series: Probability; organiser: Perla Sousi.