Phenomenological framework for nonequilibrium steady states of molecular motors

Details Phenomenological framework for nonequilibrium steady states of molecular motors Phenomenological framework for nonequilibrium steady states of molecular motors

2003-10-23

arxiv.org/abs/cond-mat/0310547v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 2 figures (1 color figure)

Scientific paper

An expression for the energetic efficiency of a molecular motor is presented in terms of an effective temperature, which was defined based on the ratio of the correlation function to the susceptibility of its velocity. We also present a numerical result regarding this temperature for a thermal ratchet model. Furthermore, our expression of efficiency using known values for kinesin can adequately explain the experimental results. The framework presented here has a closed form phenomenologically, and is independent of any detailed models.

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