Noise induced currents and reliability of transport in frictional ratchets
arXiv:cond-mat/0501106 · doi:10.1016/j.physa.2005.01.056
Abstract
We study the coherence of transport of an overdamped Brownian particle in frictional ratchet system in the presence of external Gaussian white noise fluctuations. The analytical expressions for the particle velocity and diffusion coefficient are derived for this system and the reliability or coherence of transport is analysed by means of their ratio in terms of a dimensionless Pclet number. We show that the coherence in the transport can be enhanced or degraded depending sensitively on the frictional profile with respect to the underlying potential.
arXiv comment7 pages, 6 figures
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Cited by in corpus (6)
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- Collective Effects in Models for Interacting Molecular Motors and Motor-Microtubule Mixtures
- Giant coherence in driven systems
- Supersymmetry and Fokker-Planck dynamics in periodic potentials
- Brownian motors: Joint effect of non-Gaussian noise and time asymmetric forcing
- Reliability of fluctuation-induced transport in a Maxwell-demon-type engine