Rotation in an asymmetric multidimensional periodic potential due to colored noise

Details Rotation in an asymmetric multidimensional periodic potential due to colored noise Rotation in an asymmetric multidimensional periodic potential due to colored noise

1999-11-09

arxiv.org/abs/cond-mat/9911113v1

Physics

Condensed Matter

11 pages and 3 figures

Scientific paper

10.1103/PhysRevLett.84.5243

We analyze the motion of an overdamped classical particle in a multidimensional periodic potential, driven by a weak external noise. We demonstrate that in steady-state, the presence of temporal correlations in the noise and spatial asymmetry within a period of the potential could lead to particle rotation. The rotation is a direct consequence of a change in sign of the noise-induced drift motion in each dimension. By choosing different potentials, we can generate a variety of flow patterns from laminar drifts to rotations.

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