Thermal Noise Can Facilitate Energy Conversion by Ratchet System?

Details Thermal Noise Can Facilitate Energy Conversion by Ratchet System? Thermal Noise Can Facilitate Energy Conversion by Ratchet System?

1999-03-26

arxiv.org/abs/cond-mat/9903390v2

Physics

Condensed Matter

Statistical Mechanics

10 pages, 8 figures, References and acknowledgment are updated

Scientific paper

10.1103/PhysRevE.60.4954

Molecular motors in biological systems are expected to use ambient fluctuation. In a recent Letter [Phys. Rev. Lett. {\bf 80}, 5251 (1998)], it was showed that the following question was unsolved, ``Can thermal noise facilitate energy conversion by ratchet system?'' We consider it using stochastic energetics, and show that there exist systems where thermal noise helps the energy conversion.

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