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Ratchet transport of overdamped particles in superimposed driven lattices Project supported by the National Natural Science Foundation of China (Grant Nos. 11575064 and 11175067), the PCSIRT (Grant No. IRT1243), the GDUPS Project (2016), the Natural Science Foundation of Guangdong Province, China (Grant Nos. 2016A030313433 and 2017A030313029), and the Innovation Project of Graduate School of South China Normal University
Ratchet transport of overdamped particles is investigated in superimposed driven lattices using Langevin dynamics simulations. It is found that noise can strongly affect the transport of the particles. When lattices driving dominates the transport, the noise acts as a disturbance of the directed tra...
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Published in: | Chinese physics B 2019-04, Vol.28 (4) |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | Ratchet transport of overdamped particles is investigated in superimposed driven lattices using Langevin dynamics simulations. It is found that noise can strongly affect the transport of the particles. When lattices driving dominates the transport, the noise acts as a disturbance of the directed transport and slows down the average velocity of the particles. When the driving phase has less impact on particle transport, Gaussian white noise can play a positive role. By simply modulating these two parameters, we can control efficiency and the direction of the directed currents. |
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ISSN: | 1674-1056 |
DOI: | 10.1088/1674-1056/28/4/040502 |