吸引粒子在非对称窄通道中的集体穿梭
Collective shuttling of attracting particles in asymmetric narrow channels
摘要:
本文提出了一种在非对称窄通道中进行粒子穿梭运动的工作机制,即对受到低频交流驱动的单个吸引粒子进行整流。增加粒子吸引力导致文件压缩,如净粒子流的显著增强所示。电流的大小和方向对冷凝物的实际大小变得非常敏感,然后可以使冷凝物在两个停靠站之间穿梭,沿一个方向运输粒子,其效率比传统扩散模型预测的要大得多。
英文摘要:
The rectification of a single file of attracting particles subjected to a low frequency ac drive is proposed as a working mechanism for particle shuttling in an asymmetric narrow channel. Increasing the particle attraction results in the file condensing, as signalled by the dramatic enhancement of the net particle current. Magnitude and direction of the current become extremely sensitive to the actual size of the condensate, which can then be made to shuttle between two docking stations, transporting particles in one direction, with an efficiency much larger than conventional diffusive models predict.
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