Abstract:A Quincke roller is a unique active particle that can run and tumble freely on a flat plate due to the torque generated by a uniform DC electric field applied perpendicular to the plate[1]. A system involving many such particles exhibits a variety of collective dynamics, such as the disordered gas, polar liquid, and active crystal states[1-8]. We performed direct numerical simulations of a threedimensional system containing many self-rotating particles to explicitly resolve the hydrodynamic interactions among … Show more
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