Aging effects in Schelling Segregation Model

Trabajo presentado en la Conference on Complex Systems (CCS), celebrada en Lyon del 25 al 29 de octubre de 2021.There are several variants of the Schelling segregation model. Here we consider the effect of aging in a noisy, constrained, long range model in a 2d-lattice [1]. Aging [2] is understood as a property of the agents such that they are less prone to change their location as they get older in a satisfying location. The results are counterintuitive: aging favors segregation and increases the final number of satisfied agents. The original model exhibits 3 phases when increasing the tolerance: frozen, segregated and mixed. The segregated phase is modified by aging: i) The power law characterizing coarsening shows an exponent lower than for the original Schelling Model, implying much slower dynamics, ii) The final configuration has a larger interface density. More important, in the presence of aging, the mixed phase is replaced by a partially segregated phase. This new phase is characterized by a rather large number of clusters in the final configuration as compared to the two dominant clusters of the segregated phase, by a rougher interface and also shows a smaller coarsening exponent (see Fig. 1). The results of this work will be available soon at [3]