Hydrodynamically enforced entropic trapping of Brownian particles.
作者： S. Martens , A. V. Straube , G. Schmid , L. Schimansky-Geier , P. Hänggi
DOI: 10.1103/PHYSREVLETT.110.010601
关键词:
摘要: We study the transport of Brownian particles through a corrugated channel caused by force field containing curl-free (scalar potential) and divergence-free (vector parts. develop generalized Fick-Jacobs approach leading to an effective one-dimensional description involving potential mean force. As application, interplay pressure-driven flow oppositely oriented constant bias is considered. show that for certain parameters, particle diffusion significantly suppressed via property hydrodynamically enforced entropic trapping.
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