Comment on ``Passage Times for Unbiased Polymer Translocation through a Narrow Pore''

TL;DR

This paper confirms that the translocation time of polymers through nanopores scales with chain length as predicted by a specific model, using simulation methods, and refutes alternative scaling claims.

Contribution

It provides simulation-based validation of the  scaling law for polymer translocation time, clarifying previous conflicting results.

Findings

Translocation time  scales as N^{2+1}

Simulation results confirm the  scaling law

Refutes other proposed scaling claims

Abstract

One of the most fundamental quantities associated with polymer translocation through a nanopore is the translocation time $\tau$ and its dependence on the chain length $N$. Our simulation results based on both the bond fluctuation Monte Carlo and Molecular Dynamics methods confirm the original prediction $\tau\sim N^{2\nu+1}$, which scales in the same manner as the Rouse relaxation time of the chain except for a larger prefactor, and invalidates other scaling claims.