Rotation in an asymmetric multidimensional periodic potential due to colored noise

被引:22
作者
Ghosh, AW [1 ]
Khare, SV [1 ]
机构
[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
关键词
D O I
10.1103/PhysRevLett.84.5243
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We analyze the motion of an overdamped classical particle in a multidimensional periodic potential, driven by an external noise. We demonstrate that in the 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 the 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.
引用
收藏
页码:5243 / 5246
页数:4
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