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Fluctuation-response relation in a rocking ratchet

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, ISSN: 1063-651X, Vol: 69, Issue: 3 1, Page: 031113
2004
  • 26
    Citations
  • 0
    Usage
  • 21
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    26
    • Citation Indexes
      26
  • Captures
    21

Article Description

The investigation of the relationship between the position fluctuation and mechanical response of a thermal ratchet at a nonequilibrium state was presented. A ratchet system comprising of a scanning optical trapping system and microbeads, interpreted as a realization of a rocking ratchet, was constructed. It was demonstrated that both the diffusion coefficient and the mobility of the system increased with potential rocking with a positive correlation. Though a positive relationship was found between the diffusion coefficient and mobility, the diffusion coefficient was found to have value greater than the value given in the Einstein relation.

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