Collective oscillations, bicluster motion, and dynamical order in a system of globally coupled rotors with repulsive interactions

摘要: We perform extensive numerical simulations on a system of globally coupled rotors with repulsive interactions. By controlling systematically initial conditions, we determine the criterion for emergence bicluster motion. It is found that stable motion emerges at low temperatures, where kinetic energy accounts less than about 60% total energy. Also observed are collective oscillations potential and magnetization, which persistent. With appropriately chosen exhibits characteristic biclusters keep forming disappearing continually. argued such closely related to dynamical order suggested recently.