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  Particle Transport in a Confined Ratchet Driven by the Colored Noise

Xu, Y., Mei, R., Li, Y., Kurths, J. (2019): Particle Transport in a Confined Ratchet Driven by the Colored Noise. - In: Giacomin, G., Olla, S., Saada, E., Spohn, H., Stoltz, G. (Eds.), Stochastic Dynamics Out of Equilibrium, (Springer Proceedings in Mathematics & Statistics ; 282), Cham : Springer, 443-456.
https://doi.org/10.1007/978-3-030-15096-9_15

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Item Permalink: https://publications.pik-potsdam.de/pubman/item/item_23827 Version Permalink: https://publications.pik-potsdam.de/pubman/item/item_23827_3
Genre: Book Chapter

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 Creators:
Xu, Y.1, Author
Mei, R.2, Author
Li, Y.2, Author
Kurths, Jürgen1, Author              
Affiliations:
1Potsdam Institute for Climate Impact Research, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: In this paper, we study particle transport in a confined ratchet which is constructed by combining a periodic channel with a ratchet potential under colored Gaussian noise excitation. Due to the interaction of colored noise and confined ratchet, particles host remarkably different properties in the transporting process. By means of the second-order stochastic Runge-Kutta algorithm, effects of the system parameters, including the noise intensity, colored noise correlation time and ratchet potential parameters are investigated by calculating particle current. The results reveal that the colored noise correlation time can lead to an increase of particle current. The increase of noise intensity along the horizontal or vertical direction can accelerate the particle transport in the corresponding direction but slow down the particle transport when there are the same noise intensities in both directions. For potential parameters, an increase of the slope parameter results into an increase of particle currents. The interactions of potential parameters and correlation time can induce complex particle transport phenomena, i.e. particle current increases with the increase of the potential depth parameter for a smaller asymmetric parameter and non-zero correlation time, while the tendency changes for a larger asymmetric parameter. Accordingly, suitable system parameters can be chosen to accelerate the particle transport and used to design new devices for particle transport in microscale.

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 Dates: 2019
 Publication Status: Finally published
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1007/978-3-030-15096-9_15
PIKDOMAIN: RD4 - Complexity Science
eDoc: 8908
 Degree: -

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Title: Stochastic Dynamics Out of Equilibrium
Source Genre: Book
 Creator(s):
Giacomin, G.1, Editor
Olla, S.1, Editor
Saada, E.1, Editor
Spohn, H.1, Editor
Stoltz, G.1, Editor
Affiliations:
1 External Organizations, ou_persistent22            
Publ. Info: Cham : Springer
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 443 - 456 Identifier: DOI: 10.1007/978-3-030-15096-9

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Title: Springer Proceedings in Mathematics & Statistics
Source Genre: Series
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Pages: - Volume / Issue: 282 Sequence Number: - Start / End Page: - Identifier: -