Rotation in an Asymmetric Multidimensional Periodic Potential due to Colored Noise

Avik W. Ghosh, Sanjay V. Khare
2000 Physical Review Letters  
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
more » ... f flow patterns from laminar drifts to rotations.
doi:10.1103/physrevlett.84.5243 pmid:10990914 fatcat:joboc7sjgfcxdcu46jo7dudodm