Open AccessCommunication: Driven Brownian transport in eccentric septate channels
Author(s) -
M. Borromeo,
Fabio Marchesoni,
Pulak K. Ghosh
Publication year - 2011
Publication title -
the journal of chemical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.071
H-Index - 357
eISSN - 1089-7690
pISSN - 0021-9606
DOI - 10.1063/1.3535559
Subject(s) - brownian motion , physics , channel (broadcasting) , particle (ecology) , dispersion (optics) , compartment (ship) , eccentric , mechanics , classical mechanics , geology , computer science , telecommunications , optics , quantum mechanics , oceanography
In eccentric septate channels the pores connecting adjacent compartments are shifted off-axis, either periodically or randomly, so that straight trajectories parallel to the axis are not allowed. Driven transport of a Brownian particle in such a channel is characterized by a strong suppression of the current and its dispersion. For large driving forces, both quantities approach an asymptotic value, which can be analytically approximated in terms of the stationary distribution of the particle exit times out of a single channel compartment. (C) 2011 American Institute of Physics. {[}doi:10.1063/1.3535559
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