Comment on ``Phase Transitions in Systems of Self-Propelled Agents and Related Network Models''
Abstract
In this comment we show that the transition to collective motion in Vicsek-like systems with angular noise remain discontinuous for large velocity values. Thus, the networks studied by Aldana al. [Phys. Rev. Lett. 98, 095702 (2007)] at best constitute a singular, large velocity limit of these systems.
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