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Published on: August 15, 2014
Thermal-inertial ratchet effects: negative mobility, resonant activation, noise-enhanced stability, and
1Faculty of Science, Ningbo University, Ningbo 315211, People's Republic of China.
Abstract:
Transport properties of a Brownian particle in thermal-inertial ratchets subject to an external time-oscillatory drive and a constant bias force are investigated. Since the phenomena of negative mobility, resonant activation and noise-enhance stability were reported before, in the present paper, we report some additional aspects of negative mobility, resonant activation and noise-enhance stability, such as the ingredients for the appearances of these phenomena, multiple resonant activation peaks, current reversals, noise-weakened stability, and so on.
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