The Voter Model Chordal Interface in Two Dimensions

Consider the voter model on a box of side length L (in the triangular lattice) with boundary votes fixed forever as type 0 or type 1 on two different halves of the boundary. Motivated by analogous questions in percolation, we study several geometric objects at stationarity, as L → ∞ . One is the interface between the (large—i.e., boundary connected) 0-cluster and 1-cluster. Another is the set of large “coalescing classes” determined by the coalescing walk process dual to the voter model.