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arXiv · 0810.5210

Langevin formulation for single-file diffusion

Alessandro Taloni·Michael A. Lomholt
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Abstract

We introduce a stochastic equation for the microscopic motion of a tagged particle in the single file model. This equation provides a compact representation of several of the system's properties such as Fluctuation-Dissipation and Linear Response relations, achieved by means of a diffusion noise approach. Most important, the proposed Langevin Equation reproduces quantitatively the \emph{three} temporal regimes and the corresponding time scales: ballistic, diffusive and subdiffusive.

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BibTeXRIS

Alessandro Taloni, Michael A. Lomholt. 2008-10-29. Langevin formulation for single-file diffusion. https://doi.org/10.1103/physreve.78.051116

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