dorsal/arxiv
View SchemaEfficiency optimization in a correlation ratchet with asymmetric unbiased fluctuations
| Authors | Bao-Quan Ai, Xian-Ju Wang, Guo-Tao Liu, De-Hua Wen, Hui-Zhang Xie, Wei Chen, Liang-Gang Liu |
|---|---|
| Categories | |
| ArXiv ID | physics/0307012 |
| URL | https://arxiv.org/abs/physics/0307012 |
| DOI | 10.1103/PhysRevE.68.061105 |
| Journal | Phys. Rev. E 68(2003)061105 |
Abstract
The efficiency of a Brownian particle moving in periodic potential in the presence of asymmetric unbiased fluctuations is investigated. We found that there is a regime where the efficiency can be a peaked function of temperature, which proves that thermal fluctuations facilitate the efficiency of energy transformation, contradicting the earlier findings (H. kamegawa et al. Phys. Rev. Lett. 80 (1998) 5251). It is also found that the mutual interplay between asymmetry of fluctuation and asymmetry of the potential may induce optimized efficiency at finite temperature. The ratchet is not most efficiency when it gives maximum current.
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"abstract": "The efficiency of a Brownian particle moving in periodic potential in the\npresence of asymmetric unbiased fluctuations is investigated. We found that\nthere is a regime where the efficiency can be a peaked function of temperature,\nwhich proves that thermal fluctuations facilitate the efficiency of energy\ntransformation, contradicting the earlier findings (H. kamegawa et al. Phys.\nRev. Lett. 80 (1998) 5251). It is also found that the mutual interplay between\nasymmetry of fluctuation and asymmetry of the potential may induce optimized\nefficiency at finite temperature. The ratchet is not most efficiency when it\ngives maximum current.",
"arxiv_id": "physics/0307012",
"authors": [
"Bao-Quan Ai",
"Xian-Ju Wang",
"Guo-Tao Liu",
"De-Hua Wen",
"Hui-Zhang Xie",
"Wei Chen",
"Liang-Gang Liu"
],
"categories": [
"physics.bio-ph",
"physics.gen-ph"
],
"doi": "10.1103/PhysRevE.68.061105",
"journal_ref": "Phys. Rev. E 68(2003)061105",
"title": "Efficiency optimization in a correlation ratchet with asymmetric unbiased fluctuations",
"url": "https://arxiv.org/abs/physics/0307012"
},
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