Accelerating consensus of self-driven swarm via adaptive speed

In resent years, Vicsek model has attracted extensive attention and been well developed. However, the in-depth analysis on convergent time are scarce thus far. In this paper, we study the factors that influence the convergent time of Vicsek model at zero temperature. Furthermore, to accelerate the convergence, we propose a new model in which the speed of each particle is variable. Convergent time can be remarkably shortened compared with the standard Vicsek model.