Translocation of a polymer chain driven by a dichotomous noise

Details Translocation of a polymer chain driven by a dichotomous noise Translocation of a polymer chain driven by a dichotomous noise

2012-02-23

arxiv.org/abs/1202.5162v2

Journal of Statistical Mechanics: Theory and Experiment (2011) P11002

Physics

Condensed Matter

Soft Condensed Matter

11 pages, 7 figures

Scientific paper

10.1088/1742-5468/2011/11/P11002

We consider the translocation of a one-dimensional polymer through a pore channel helped by a motor driven by a dichotomous noise with time exponential correlation. We are interested in the study of the translocation time, mean velocity and stall force of the system as a function of the mean driving frequency. We find a monotonous translocation time, in contrast with the mean velocity which shows a pronounced maximum at a given frequency. Interestingly, the stall force shows a nonmonotonic behavior with the presence of a minimum. The influence of the spring elastic constant to the mean translocation times and velocities is also presented.

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