In general, no transport can emerge in a spatially symmetric periodic system subjected to an unbiased dichotomous periodic driving. Here, we used a noise, which switches synchronously with the driving in three cases [switch between Gaussian white noise and colored noise, two colored noises with different colors (e.g., autocorrelation rate), and Gaussian white noise and harmonic velocity noise], to drive such a symmetric system. Numerical results for the cases indicate that the directed transport of the symmetric system can be induced merely by the color breaking (the difference in two autocorrelation rates) of the switch noise. The amplitude of current depends on the difference, i.e., the greater the difference, the greater the current. Also, the greater autocorrelation rate between the two noises determines the direction of current. The current as a function of the noise intensity for all cases has in common that appropriate noise intensity induces optimal transport. Further investigations show that the color breaking comes from the difference of barrier heights between the left and right-tilted potentials induced by the different autocorrelation rates.
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December 2020
Research Article|
December 22 2020
Directed transport of symmetrically periodic system induced by “color” breaking of noise
Ruyin Chen
;
Ruyin Chen
a)
1
School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University
, Wenzhou 325000, China
a)Author to whom correspondence should be addressed: [email protected]
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Luoluo Jiang
Luoluo Jiang
2
School of Information Management and Artificial, Zhejiang University of Finance and Economics
, Hangzhou 310018, China
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a)Author to whom correspondence should be addressed: [email protected]
Chaos 30, 123140 (2020)
Article history
Received:
October 05 2020
Accepted:
December 04 2020
Citation
Ruyin Chen, Luoluo Jiang; Directed transport of symmetrically periodic system induced by “color” breaking of noise. Chaos 1 December 2020; 30 (12): 123140. https://doi.org/10.1063/5.0031756
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