Microscopic model for thin film spreading |
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Authors: | Abraham Douglas B Cuerno Rodolfo Moro Esteban |
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Affiliation: | Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom. |
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Abstract: | A microscopic, driven lattice gas model is proposed for the dynamics and spatiotemporal fluctuations of the precursor film observed in spreading experiments. Matter is transported both by holes and particles, and the distribution of each can be described by driven diffusion with a moving boundary. This picture leads to a stochastic partial differential equation for the shape of the boundary. Explicit analytic results are obtained which agree with the simulations of the lattice gas. |
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