ArticleThe Journal of chemical physics2011
Communication: drift velocity of Brownian particle in a periodically tapered tube induced by a time-periodic force with zero mean: dependence on the force period.
Article in The Journal of chemical physics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Biased diffusion in tubes of alternating diameter: analytical treatment in the case of strong bias.The Journal of chemical physics · 2014Article
- Effective diffusion coefficient of a Brownian particle in a periodically expanded conical tube.Physical review. E, Statistical, nonlinear, and soft matter physics · 2013Article
- Force-dependent mobility and entropic rectification in tubes of periodically varying geometry.The Journal of chemical physics · 2012Article
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Authors and funding
4 authors.
Funding
Abstract
We study the drift of a Brownian particle in a periodically tapered tube, induced by a longitudinal time-periodic force of amplitude ∣F∣ that alternates in sign every half-period. The focus is on the velocity dependence on the force period, which is usually considered not tractable analytically. For large ∣F∣ we derive an analytical solution that gives the velocity as a function of the amplitude and the period of the force as well as the geometric parameters of the tube. The solution shows how the velocity decreases from its maximum value to zero as the force period decreases from infinity (adiabatic regime) to zero. Our analytical results are in excellent agreement with those obtained from 3D Brownian dynamics simulations.
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