The properties of a ratchet system rectifying the random motion of two harmonically coupled particles with arbitrary coupling strengths are studied via Langevin simulations. In comparison with the result of single particle, our results show that the average center-of-mass velocity vc of two particle
Transport coherence in coupled Brownian ratchet
โ Scribed by Hai-Yan Wang; Jing-Dong Bao
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 302 KB
- Volume
- 374
- Category
- Article
- ISSN
- 0378-4371
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โฆ Synopsis
With this work, we investigate an often neglected aspect of coupled Brownian motors transport, namely, transport coherence. To discuss the transport coherence of coupled Brownian motors, velocity, diffusion coefficient and their ratio (Pe number) are calculated via solving Langevin equation in fluctuating potential ratchet. The results demonstrate that the collective effect of coupled Brownian ratchets can generate high transport coherence.
๐ SIMILAR VOLUMES
The quantum theory of Brownian motion is discussed in the Schwinger version wherein the notion of a coordinate moving forward in time x(t) is replaced by two coordinates, x + (t) moving forward in time and x & (t) moving backward in time. The role of the doubling of the degrees of freedom is illustr