Bidirectional random motion driven by globally coupled noisy active elements in an electric field.
The assembly of the insulating Brownian particles globally coupled due to the macroscopic flow of the liquid with low conductivity has transitions between the states of random motion and random bidirectional and unidirectional motion. The threshold values of the parameters for the transition to random bidirectional motion is found by the effective field method and correspond to those found by Brownian dynamics. The behavior of the assembly is similar to the behavior of different active multistable systems.
Institute of Physics, University of Latvia, Salaspils-1, LV-2169, Latvia. aceb@tesla.sal.lv
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