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Rectification Efficiency of Two Harmonically Coupled Particles |
| SUN Lian-Xiu |
| Department of Physics, Tonghua Normal University, Tonghua 134002 |
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| Cite this article: |
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SUN Lian-Xiu 2009 Chin. Phys. Lett. 26 040502 |
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Abstract Transportation properties of two harmonically coupled particles moving in a flashing or rocking ratchet potential are investigated in terms of Langevin simulation. The efficiency for rectification of non-equilibrium fluctuation is calculated by using a new definition. The results show that both the average current and efficiency of two coupled particles in the flashing ratchet are larger than that of a single particle and these quantities are non-monotonous functions of the potential remaining time
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| Keywords:
05.40.-a
87.16.Nn
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Received: 18 September 2008
Published: 25 March 2009
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| PACS: |
05.40.-a
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(Fluctuation phenomena, random processes, noise, and Brownian motion)
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87.16.Nn
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(Motor proteins (myosin, kinesin dynein))
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