Repulsive torques alone trigger crystallization of constant speed active particles.
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DOI: 10.1039/d2sm00256f
Abstract: We investigate the possibility for self-propelled particles to crystallize without reducing their intrinsic speed. We illuminate how, in the absence of any force, the competition between self-propulsion and repulsive torques determines the macroscopic phases of… read more here.
Keywords: active particles; repulsive torques; speed active; crystallization ... See more keywords
Enhancement of Microorganism Swimming Speed in Active Matter.
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DOI: 10.1103/physrevlett.121.178002
Abstract: We study a swimming undulating sheet in the isotropic phase of an active nematic liquid crystal. Activity changes the effective shear viscosity, reducing it to zero at a critical value of activity. Expanding in the… read more here.
Keywords: swimming speed; enhancement microorganism; speed active; microorganism swimming ... See more keywords