Abstracts

Fabio Marchesoni
Universita' di Camerino


Brownian Transport in Narrow Channels

Directed Brownian transport (ratcheting) in narrow channels of various geometries [1] has been demonstrated in the presence of different external biases, including periodic drives and other time correlated energy sources.
We discuss how hydrodynamic effects can be incorporated in the standard reduced formalism (aka Fick-Jacobs-Zwanzig model) to reproduce recent experimental observations [2].
We further propose the design of high-efficiency autonomous ratchets [3] by employing active (or self-propelling) Brownian particles both in dilute solutions and binary mixtures.

References
[1] P. Hänggi and F. Marchesoni, Rev. Mod. Phys. 81, 387 (2009)
[2] H.P. Zhang et al, submitted (2017)
[3] P.K. Pulak, V.R. Misko, F. Marchesoni, F. Nori, Phys. Rev. Lett. 110, 268301 (2013)





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