On (Non-)Monotonicity and Phase Diagram of Finitary Random Interlacement

Entropy (Basel). 2021 Jan 4;23(1):69. doi: 10.3390/e23010069.

Abstract

In this paper, we study the evolution of a Finitary Random Interlacement (FRI) with respect to the expected length of each fiber. In contrast to the previously proved phase transition between sufficiently large and small fiber length, for all d≥3, FRI is NOT stochastically monotone as fiber length increases. At the same time, numerical evidence still strongly supports the existence and uniqueness of a critical fiber length, which is estimated theoretically and numerically to be an inversely proportional function with respect to system intensity.

Keywords: critical value; finitary random interlacement; percolation phase transition.