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2004

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/12835

Diffusion on a solid surface: anomalous is normal

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http://dx.doi.org/10.1103/PhysRevLett.92.250601

Abstract

We present a numerical study of classical particles diffusing on a solid surface. The particles motion is modeled by an underdamped Langevin equation with ordinary thermal noise. The particle-surface interaction is described by a periodic or a random two-dimensional potential. The model leads to a rich variety of different transport regimes, some of which correspond to anomalous diffusion such as has recently been observed in experiments and Monte Carlo simulations. We show that this anomalous behavior is controlled by the friction coefficient and stress that it emerges naturally in a system described by ordinary canonical Maxwell-Boltzmann statistics.

Subject

Física estadística, Termodinàmica

Subject (English)

Statistical physics, Thermodynamics

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

SANCHO, José M., et al. Diffusion on a solid surface: anomalous is normal. Physical Review Letters. 2004. Vol. 92, num. 25, pags. 250601(1)-250601(4). ISSN 0031-9007. [consulted: 16 of August of 2026]. Available at: https://hdl.handle.net/2445/12835

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