We study a system of particles with soft repulsive interactions that lead to a cluster-crystal phase
(solid in which the unit cell is occupied by a cluster of particles) in two dimensions. We analyze both situations: when particles are passive and active. For the case of active particles we use two different modelizations of the active force: Active Brownian particles, and Ornstein-Uhlenbeck particles, and focus on analogies and differences between them.
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