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Transportation of Two Coupled Particles in an Asymmetric Saw-Tooth Potential
Kong, LW; Wan, RZ; Fang, HP; Wan, RZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China.
2016
Source PublicationCHINESE PHYSICS LETTERS
ISSN0256-307X
Volume33Issue:2Pages:
Subtype期刊文献
AbstractBased on a simple model, we theoretically show the transport behaviors of two harmonically coupled Brownian particles in an asymmetric saw-tooth potential with two slopes. The coupled particles are subject to stochastic fluctuations. It is found that when the equilibrium distance of the coupled particles is between the two slopes of the potential, the transport direction of the coupled particles will be reversed with a certain harmonic coupling strength. This current reversal can be easily understood with the near rigid approximation, where the two coupled particles can be regarded as a single particle in an effective potential. Compared with the original saw-tooth potential, the asymmetry of the effective potential could be reversed when the equilibrium distance is between the two slopes of the original potential, which results in the current reversal.
KeywordBrownian Motors Molecular Motors Chaotic Transport Thermal Ratchets Random Walker Noise Driven Motion Nanoscale Forces
DOI10.1088/0256-307X/33/2/020501
Indexed BySCI
Language英语
WOS IDWOS:000369637200004
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25876
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorWan, RZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China.
Recommended Citation
GB/T 7714
Kong, LW,Wan, RZ,Fang, HP,et al. Transportation of Two Coupled Particles in an Asymmetric Saw-Tooth Potential[J]. CHINESE PHYSICS LETTERS,2016,33(2):—.
APA Kong, LW,Wan, RZ,Fang, HP,&Wan, RZ .(2016).Transportation of Two Coupled Particles in an Asymmetric Saw-Tooth Potential.CHINESE PHYSICS LETTERS,33(2),—.
MLA Kong, LW,et al."Transportation of Two Coupled Particles in an Asymmetric Saw-Tooth Potential".CHINESE PHYSICS LETTERS 33.2(2016):—.
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