Translocation of Polymers through Nanopores at Weak External Field, Direct Approach with Monte Carlo Simulations

Abstract

I did off-lattice 3D Monte Carlo simulations for polymer translocation through a narrow pore at low external field, trying to be as close to a direct approach as possible. The process was found non equilibrium globally, but dynamics of the monomers close to the pore (the fold) was found close to quasi equilibrium. I observed a tension (or pressure) buildup near the pore, and subdiffusion for the displacement of the middle monomer in the pore, as reported in the literature. I did not find the distribution of the reaction coordinate after some time of free diffusion predicted by the fractional diffusion equation.