Transport and fractionation in periodic potential-energy landscapes.
作者： David G. Grier , Matthew Pelton , Kosta Ladavac
DOI: 10.1103/PHYSREVE.70.031108
关键词: Physics 、 Orientation (geometry) 、 Complex fluid 、 Crossover 、 Limit (mathematics) 、 Energy (signal processing) 、 Classical mechanics 、 Periodic potential
摘要: Objects driven through periodically modulated potential-energy landscapes in two dimensions can become locked to symmetry-selected directions that are independent of the driving force's orientation. We investigate this problem overdamped limit, and demonstrate crossover from free-flowing locked-in transport depend exponentially on an object's size, with exceptional selectivity emerging landscape's periodicity.
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