在变形活性物质中滑翔
Gliders in shape-changing active matter
摘要：
我们报告在实验和模拟的自发形成的动态绑定对形状变化smarticle机器人进行局部排斥碰撞。借用康威的模拟生命游戏的术语，这些物理“滑翔机”从一个单独起伏的三连杆双电机智能机器人的集合中健壮地出现，并且可以保持数百个起伏和多个机器人维度的旅行。滑翔机出现在两个不同的约束对称性和形式在一个广泛的角度扑翼范围。该参数设置影响形成概率和翻译特性的最大值。模拟中的动力学分析揭示了有效的动力学吸引机制--适当定向和定时的排斥相互作用的紧急相互作用的结果。
英文摘要：
We report in experiment and simulation the spontaneous formation of dynamically bound pairs of shape changing smarticle robots undergoing locally repulsive collisions. Borrowing terminology from Conway's simulated Game of Life, these physical `gliders' robustly emerge from an ensemble of individually undulating three-link two-motor smarticles and can remain bound for hundreds of undulations and travel for multiple robot dimensions. Gliders occur in two distinct binding symmetries and form over a wide range of angular flapping extent. This parameter sets the maximal concavity which influences formation probability and translation characteristics. Analysis of dynamics in simulation reveals the mechanism of effective dynamical attraction -- a result of the emergent interplay of appropriately oriented and timed repulsive interactions.
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