Fig. 4: Probing the existence of long-range order.
From: Topological flocking models in spatially heterogeneous environments
Polar order parameter r vs inverse system size 1/Nb at different noise values (η) and obstacle densities (ρo). Panels a, c correspond to k-nearest neighbors interaction (kNN, k = 6 where k is the number of neighboring objects), and panels b, d are for Voronoi interaction. a, b ρo = 0.051 and c, d ρo = 0.153. Error bars represent the standard deviation of the polar order parameter over different realizations of the obstacle field (see “Methods”). Note that error bars are often comparable or smaller than the symbol size.
