Translocation of a polymer chain driven by a dichotomous noise

Abstract

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.

11 pages, 7 figures

References in corpus (4)

• Physical approaches to DNA sequencing and detection
• Fluctuation-Driven Molecular Transport in an Asymmetric Membrane Channel
• Mechanical coupling in flashing ratchets
• Noise driven translocation of short polymers in crowded solutions

Cited by in corpus (3)

• Translocation through environments with time dependent mobility
• End-pulled polymer translocation through a many-body flexible pore
• Polymer translocation driven by longitudinal and transversal time-dependent end-pulling forces