Diffusion between evolving interfaces

Details Diffusion between evolving interfaces Diffusion between evolving interfaces

2010-11-19

arxiv.org/abs/1011.4383v1

Journal of Physics: Condensed Matter 22, 465402 (2010)

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 8 figures

Scientific paper

10.1088/0953-8984/22/46/465402

Diffusion in an evolving environment is studied by continuos-time Monte Carlo simulations. Diffusion is modelled by continuos-time random walkers on a lattice, in a dynamic environment provided by bubbles between two one-dimensional interfaces driven symmetrically towards each other. For one-dimensional random walkers constrained by the interfaces, the bubble size distribution domi- nates diffusion. For two-dimensional random walkers, it is also controlled by the topography and dynamics of the interfaces. The results of the one-dimensional case are recovered in the limit where the interfaces are strongly driven. Even with simple hard-core repulsion between the interfaces and the particles, diffusion is found to depend strongly on the details of the dynamical rules of particles close to the interfaces. Article reference: Journal of Physics: Condensed Matter 22, 465402 (2010).

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