Hopping motion of interacting particles: From time-dependent interaction to directed transport

Markus Porto, Michael Urbakh, Joseph Klafter
2001 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
The hopping motion of three or more pairwise interacting particles on a linear equipotential chain is investigated. It is shown that a directed transport of the particle array can be obtained by introducing timedependent interactions such as switching the interaction strength periodically between two values. The direction and mean velocity of the motion are determined by the nature of the imposed time dependence and can, hence, be chosen dynamically. The possibility of transporting a passive
more » ... orting a passive cargo and some other applications are discussed.
doi:10.1103/physreve.65.011108 pmid:11800678 fatcat:hc4yhdwkizcoba36la7mfdjx2m