Rectification of Fluctuations in an Underdamped Ratchet

Details Rectification of Fluctuations in an Underdamped Ratchet Rectification of Fluctuations in an Underdamped Ratchet

1998-04-20

arxiv.org/abs/cond-mat/9804215v1

Phys. Rev. Lett. 81, 4040 (1998)

Physics

Condensed Matter

Statistical Mechanics

4 pages REVTEX, 2 figures included

Scientific paper

10.1103/PhysRevLett.81.4040

We investigate analytically the motion of underdamped particles subject to a deterministic periodic potential and a periodic temperature. Despite the fact that an underamped particle experiences the temperature oscillation many times in its escape out of a well and in its motion along the potential, a net directed current linear in the friction constant is found. If both the potential and the temperature modulation are sinusoidal with a phase lag $\delta$, this current is proportional to $\sin \delta$.

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