Collective shuttling of attracting particles in asymmetric narrow channels
journal contributionposted on 07.10.2014 by Andrey Pototsky, Andrew Archer, M. Bestehorn, D. Merkt, Sergey Saveliev, Fabio Marchesoni
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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 signaled by the dramatic enhancement of the net particle current. The 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.
A.J.A. gratefully acknowledges support from RCUK. This work was partly supported by the HPC-Europa2 Transnational Access Programme.
- Mathematical Sciences