Programming Active Granular Matter with Mechanically Induced Phase Changes
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Emergent behavior of particles on a lattice has been analyzed extensively in mathematics with possible analogies to physical phenomena such as clustering in colloidal systems. While there exists a rich pool of interesting results, most are yet to be explored physically due to the lack of experimental validation. Here we show how the individual moves of robotic agents are tightly mapped to a discrete algorithm and the emergent behaviors such as clustering are as predicted by the analysis of this algorithm. Taking advantage of the algorithmic perspective, we further designed robotic controls to manipulate the clustering behavior and show the potential for useful applications such as the transport of obstacles.
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