作者: M. B�ttiker
DOI: 10.1007/BF01304221
关键词: Net force 、 Modulation 、 Diffusion (business) 、 Noise (electronics) 、 Periodic function 、 Physics 、 Diffusion current 、 Force field (physics) 、 Mechanics 、 Amplitude
摘要: Overdamped particles subject to a drift in force field with sinusoidal space dependence and also sinusoidally modulated space-dependent diffusion, the same period as drift, experience net driving force. The resulting current depends on amplitude of modulation diffusion is periodic function phase difference between diffusion. For small amplitudes particle state-dependent noise behaves way thermal but which, addition term, contains term.